The probability distribution for a random variable x is given in the table Find the probability that X<=20
Answers
probability for X<=20 is 1
what is probability?
the probability is the department of mathematics concerning numerical descriptions of how likely an event is to occur, or how likely it is that a proposition is true. The chance of an event is a number between 0 and 1, in which, roughly speaking, zero indicates the impossibility of the event and 1 shows certainty.
probability = the number of ways of attaining success. the total number of possible results. For instance, the chance of flipping a coin and its being heads is ½, due to the fact there may be 1 way of getting a head and the total number of possible outcomes is two (a head or tail).
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Related Questions
A trader bought 20 cups of rice at 5 cups for 100 naira and sold them at 4 cups for 100naira . what was his profit
Answers
Answer:
He is making 20 naira profit for every 4 cups that he sells for 100 naira
Therefore, if he selled all this cups for 100 naira per 4 cups he made a total profit of 100 naira
Jim began a 222-mile bicycle trip to build up stamina for a triathlete competition. Unfortunately, his bicycle chain broke, so he finished the trip walking. The whole trip took 8 hours. If Jim walks at a rate of 5 miles per hour and rides at 33 miles per hour, find the amount of time he spent on the bicycle.
Answers
Answer:d =6
Step-by-step explanation:
chuck bought 19 movie tickets for $174.50. The adult tickets cost $11.50 each and child tickets cost $7.50 each. How many child tickets did he purchase?
Answers
Explanation: (look at picture)
Angle K measures 67º and angle L measures 119°.
Circle O is inscribed by quadrilateral L M N K.
What are the measures of angles M and N?
m Angle M = 61o and m Angle N = 113o
m Angle M = 67o and m Angle N = 119o
m Angle M = 113o and m Angle N = 61o
m Angle M = 119o and m Angle N = 67o
Answers
Answer:
C. m Angle M = 113o and m Angle N = 61o
Step-by-step explanation:
It's the only answer that makes all the angles added together equal 360 degrees.
67 + 119 + 113 + 61 = 360
Answer:
C
Step-by-step explanation:
You pick a card at random, If you pick a face card, then you win $5.00. If do not pick a face card , then you lose $1.50. Is this a fair game?
Answers
A town total allocation for firefighters wages and benefits in a new budget is $600,000. If wages are calculated at $40,000 per firefighter and benefits at $20,000 per firefighter. How many firefighters can the town employ if they spend their whole budget?
Answers
Answer:
Number of firefighters= 10
Step-by-step explanation:
Giving the following information:
Total budget= $600,000
Wage per firefighter= $40,000
Benefits per firefighter= $20,000
To calculate the number of firefighters that the town can employ, we need to use the following formula:
Number of firefighters= total budget / total cost per firefighter
Number of firefighters= 600,000 / (40,000 + 20,000)
Number of firefighters= 10
) 0 Solve the following equation for x. - 4 (1 – 3x) + 4x = -100 what is x?
Answers
Step-by-step explanation:
4 (1 – 3x) + 4x = -100
4-12x+4x=-100
-12x+4x=-100-4
-8x=-104
x=-104/-8
x=13
Answer:
x = − 12
Step-by-step explanation:
The diagonals of the figure below represent the support beams for a patio covering.
B
E
30°
10 yards
M
A
What is the length of each support beam?
o 10 yards and 10x/3 yards
O 5 yards and 53 yards
O 10 yards and 5 yards
O 15 yards and 5 yards
Answers
Answer:B
Step-by-step explanation:
Took the test
I need the answers for questions 1-6
Answers
A number is selected, at random, from the set 1, 2, 3, 4, 5, 6, 7, 8. Find: p(odd)
25%
50%
100%
Answers
Answer:
50%
Step-by-step explanation:
Half of the numbers in the sequence are odd, so there's a 50% to have gotten an odd number randomly. Therefore, P = 50%
Fred's car has run out of gasoline. He walks 4 km west and then 3 km south looking for a gasoline station. If he is now h km directly from his starting point, find the value of h
Answers
Answer:
5 km
Step-by-step explanation:
From. The question, the triangle formed us a right angled triangle,
h km directly from starting point is the hypotenus, h :
Hypotenus = sqrt(opposite² + Adjacent²)
h = sqrt(4² + 3²)
h = sqrt(16 + 9)
h = sqrt(25)
h = 5 km
A car travels 20 miles in 20 minutes. What is the average speed of the car?
Answers
Answer:
1mi/1min
Step-by-step explanation:
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
Answer: 60MPH
Explanation:
20 miles in 20 minutes = 1 mile/minute
1 mile/ minute is equal to 60 miles/60 minutes = 60 MPH
I hope this helped!
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Go to my question that says “ What’s the area of the triangle??” please help me
Answers
Answer:
Ok I'll help
Step-by-step explanation:
What is the equation of the line that passes through the points (15,9) and (-2, 9)?
Oy - 9
11
Oy ----x+ 9
Oy=-17
Oy - 6x + 11
Answers
Answer:
c
Step-by-step explanation:
1.6 Describe how vocation stress may negatively affect your family life. (2x2) (4)
Answers
unpredictable and easily loses his/her temper with family members. A disconnect starts setting in, pushing him/her further into depression. This leads to a lack of confidence and eventually with growing frequency of arguments.
Before work, Penny spends 1/2 hour getting showered/dressed, 1/4 hour eating breakfast, and 1/12 hour making lunch. What fraction of an hour does she spend doing these activities?
Answers
Answer:
30 minutes getting showered/ dressed
15 minutes eating
5 minutes making lunch
Step-by-step explanation:
find m
A.138
B.141
C.69
D.72
Answers
Answer:
C
Step-by-step explanation:
Hello There!
If you look at the image you can see that an inscribed angle is equal to one half of the major arc minus the minor arc
So for this problem here
m∠CAD would be equal to 1/2 (arc CD - arc BD)
so now we just plug in the values
m∠CAD = 1/2 ( 210 - 72)
210-72=138
138/2=69
so m∠CAD = 69
Kendra walked diagonally across a rectangular field that is 45 m by 65 m. To the nearest tenth of a meter, how far did she walk?
Answers
Answer:
?
Step-by-step explanation:
How many different ways can a director select 4 actors from a group of
16 actors to be in a dance scene?
Answers
 WHO KNOWS FUNCTIONS AND ALL THAT PLZZZ HELP ME ASAP I REALLY NEED IT PLZZ
Answers
Answer: D
Step-by-step explanation:
The equation is curvy so its a quadratic
Quadratics are to the second power so the answer is d
Your parents took your family out to dinner your parents wanted to give the waiter a 15% tip if the total amount of the dinner was $67.50 what should be paid to the waiter as a tip and what is the total amount your parents will spend
Answers
Answer:
15% of $67.50 is $10.125 lets round it up to $10.13
Tip: $10.13
Total meal cost: $77.63
Brainly plz :))
Answer:
the waiter 10.13
your parents will pay 77.63
Step-by-step explanation:
67. 50 x 0.15 = 10.13
67.50 + 10.13 = 77.63
hope this helps
Helppppp please!!! D:
Find the perimeter of the trapezoid below:
Please no cap!!
Answers
Answer:
Step-by-step explanation:
P=a+b+c+d = this is your name ok
A circle has radius 3. What's the area?
a
28.26
b
28.14
c
6.28
d
29.56
Answers
Answer:
28.27.... a
Step-by-step explanation:
The distance around a meteor crater is 9,471 ft. Find the diameter of the crater. Use
22/7 for pi.
Answers
The distance around a circle is the circumference.
Circumference is diameter x PI
You are given the circumference and the value of pi.
To find the diameter, divide the circumference by pi.
Diameter = 9,471 / 22/7 = 3,013.5 feet
I WILL MARK BRAINLIEST IF ANSWER CORRECTLY!
One of the acute angles of a right triangle measure 37. What does the other acute angle measure? Hint: The sum of the angles of a triangle is 180 degrees.
a. 143
b. 53
c. 127
d. 37
One angle of a linear pair measures 53 degrees. What does the other angle measure?
a. 143
b. 37
c. 53
d. 127
Answers
Answer:
B. 53
D. 127
...............
Sally is at the park standing directly under a kite which is 20 feet overheadSally's dad is flying the kitc and is standing 15 feet from her If both are on level ground, how long is the kite string in feet?
Answers
Answer:
25 feet
Step-by-step explanation:
Given that Sally is at the park standing directly under a kite which is 20 feet overheadSally's dad is flying the kitc and is standing 15 feet from her If both are on level ground, how long is the kite string in feet?
To calculate the length of the kite string, we will apply pythagorean theorem.
Length = sqrt ( 20^2 + 15^2 )
Length = sqrt ( 400 + 225 )
Length = sqrt ( 625 )
Length = 25 feet.
Therefore, the length of the kite string is 25 feet.
heyyyyyyyyyyyy helpppp
Answers
Answer:
its b
Step-by-step explanation:
Answer: the answer B sorry if its wrong
Step-by-step explanation: have a nice day buddy
Who applied algebra to astronomy?
A. Brahmagupta
B. Diophantus' Arithmetica
C. Aryabhatt
D. Hermann Grassman
Answers
Answer:
brahmagupta ..........
Answer:
A. Brahmagupta
Step-by-step explanation:
It is the "Correct Answer"
Insert 16 rational numbers between 2.1 and 2.2
Answers
Answer:
We will apply the formula of d=y- x/n+1
Let y be 2.2 and x be 2.1 and n= 16
Then 2.2-2.1/ 16+1
0.1/17
x+d= 2.1 + 0.1 = 2.2
x+2d= 2.1+2×0.1=2.3
x+3d= 2.1+3×0.1=2.4
x+4d= 2.1+4×0.1=2.5
x+5d=2.1+5×0.1=2.6
x+6d=2.1+6×0.1=2.7
x+7d=2.1+7×0.1=2.8
x+8d=2.1+8×0.1=2.9
x+9d=2.1+9×0.1=3
x+10d=2.1+10×0.1=3.1
x+11d=2.1+11×0.1=3.2
x+12d=2.1+12×0.1=3.3
×+13d=2.1+13×0.1=3.4
x+14d=2.1+14×0.1=3.5
x+15d=2.1+15×0.1=3.6
x+16d=2.1+16×0.1=3.7
Step-by-step explanation:
mark brainlyest plz it really helps
Between what two consecutive integers is √38.4?
Answers
Answer:
Step-by-step explanation:
6²=36
7²=49
36<38.4<49
between 6 and 7
Answer:
between 6 and 7
Step-by-step explanation: