Anasia is a basketball player who regularly shoots sets of 2 free-throws. Suppose that each shot has probability
0.7 of being made, and the results of the shots are independent.
The table below displays the probability distribution of X, the number of shots that Anasia makes in a set of 2
attempts.
2
X=of makes 0 1
P(X)
0.09 0.42
0.49
Given that r = 1.4 makes, find the standard deviation of the number of shots that Anasia makes.
Round your answer to two decimal places
shots
Answers
Answer:
0.65
Step-by-step explanation:
The required standard deviation is 0.65
Given data is,
Computation:
[tex]\varepsilon_x\times P(X=x)=0\times 0.09+1\times0.42+2\times0.49\\=0.42+0.98\\=1.4[/tex]
Now,
[tex]E(X^2)=0^2\times 0.009+1^2\times 0.42+2^2\times 0.49\\=0.42+1.96\\=2.38\\\sigma ^2=E(X^2)-(E(X))^2\\=2.38-(1.4)^2\\=0.42\\\sigma =\sqrt{0.42}\\=0.65[/tex]
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Related Questions
Find the sum
14.3 + 7.36 = ?
Answers
Answer:
21.66
Step-by-step explanation:
y varies inversely with x. If x = 5 and y= 1 what is x if y = 0.5
Type your answer..
Answers
X=2.5
Step-by-step explanation:
0.5=1/2
5/2 = 2.5
x2 – 11x + 5 = -2x
Solve equation to the nearest tenth
Answers
Answer:
x = 5/7 -> 0.714285 which to the nearest tenth would be 0.7
Step-by-step explanation:
is it x*2 or x^2?
If it were x to the power of two, then the answer would be about x1 = 0.594875 and x2 = 8.40512
Section 1
Evelyn reads 25 pages in 30 minutes.
Number of Pages
25
400
Time (in minutes)
30
?
If Evelyn reads 400 pages at this same rate, how many minutes will it take her?
O 90 minutes
O 120 minutes
O 375 minutes
0 480 minutes
Answers
Based on the scatter plot below, what is the most likely value for "Pounds of Apples" when "Number of Apples" is 80?
A. 42
B. 81
C. 158
D. 398
Help me quickly please!!!
Answers
Answer:
c hope this help
Step-by-step explanation:
Answer:
It’s A. 42
Step-by-step explanation:
I NEED HELP ASAP
Enter your answer by filling in the boxes to complete the equations that describe the calculation.
80 ÷ 5 = __ ÷ 5 + __ ÷ 5
= __ + 6
= __
Answers
Answer:
80 / 5 = 40 / 5 + 40 / 5 = 10 + 6 = 16
Step-by-step explanation:
80 / 5 = 16
__ / 5 + __ / 5
You can do 80 / 2 to fill in those two blanks because the answer needs to equal the same as 80 / 5
80 / 2 = 40
40 / 5 + 40 / 5
8 + 8 = 16
the third blank needs to also equal 16. So you can do 16 - 6 to know what fills in the blank.
16-6
10
10+6 = 16
The last blank must equal the same as all the other equations so 16 would fill it.
If you need further help, don't be afraid to reach out with any questions. I hope this helps!
Answer:
80/5= 50/5 + 30/5= 10 + 6= 16
Help me with this question! Will mark brainliest
Answers
Answer:
D) y = 7x + 1
Step-by-step explanation:
Slope-incercept form is y = mx + b in which m = slope and b = y-incercept
The line crosses through (0,1), which means the y-intercept is 1
Plug the given numbers into that formula:
y = 7x + 1
12х - 5 >3х^2 +5
I am confused how to solve this.
Answers
Answer (3 different forms):
1st Form:
[tex]2+-\frac{1}{3} \sqrt{6} <x<2+\frac{1}{3} \sqrt{6}[/tex]
2nd Form:
[tex]-\sqrt\frac{2}{3}+2<x<\sqrt\frac{2}{3}+2[/tex]
3rd Form:
[tex]\frac{6-\sqrt{6}}{3}<x< \frac{6+\sqrt{6}}{3}[/tex]
Or
[tex](\frac{6-\sqrt{6}}{3}),(\frac{6+\sqrt{6}}{3})[/tex]
Step-by-step explanation:
You can see that I put three different forms of answers, but they are all still equivalent answers. The reason why I got three different answers is because I put the inequality in three different calculators and they all got me different answers, but all three are still equivalent. The following three attachments are images of the three calculators that I used to solve.
Hope this helps and answers your question! :)
Identify the scale factor used to graph the
image below.
Answers
Can somebody plz answer this math problem correctly thanks!
WILL MARK BRAINLIEST :D
Answers
Answer:
Ellen and Blake answered 20 questions correctly since Ellen had 0.8 correct and that is 80% same with Blake
Stephen scored a .84 or an 84%
I hope this helps :)
Step-by-step explanation:
plz mark B R A I N L I E S T
Answer:
Stephen: 21
Ellen: 20
Blake: 20
Step-by-step explanation:
If youre looking for more in depth answers:
Stephen received a 21 / 25 (84%)
Ellen received a 20 / 25 (80%)
Black received a 20 / 25 (80%)
PLEASE ANSWER PLEASESEE
Answers
Answer:
I’m pretty sure the answer to this would be 11- but it could also be eight so check that but I’m pretttyyyy sure it’s 11. I hope that helps you
Step-by-step explanation:
what is a relation?????????????????
Answers
Answer:
c.
Step-by-step explanation:
help I suck at math lol
Answers
So that it becomes 7/4, which is 1 3/4
For 48/9, divide both numbers by 3
So that it becomes 16/3 which is 5 1/3
Answer:
14/8 = 1 3/4
48/9 = 5 1/3
Step-by-step explanation:
14/8 = 1 6/8
6/8 = 3/4
14/8 = 1 3/4
48/9 = 5 3/9
3/9 = 1/3
48/9 = 5 1/3
PLEASE HELP!! Select all that apply, brainiest for right answer! right answers only please
Answers
Answer:
D
Step-by-step explanation:
pls help thx and merry christmas and or happy Hanukkah
Answers
Answer:
3 3/4 yards of ribbon my dudeeee
Answer:
oof
Step-by-step explanation:
PLEASE HELP URGENT WILL MARK BRAINLIEST
Answers
Answer:b) intersecting
If Jim traveled 67 miles per hour for 4.25 hours, calculate the distance he traveled.
d = rt
Answers
Answer:
284.75 = 67(4.25)
284.75 Miles
Step-by-step explanation:
Answer:
15 mph
Step-by-step explanation:
write at equation for the line that is perpendicular to the given line and that contains the given point
y=-1/3x + 5 ; (2,5)
Answers
Answer:
y=3x-1
Step-by-step explanation:
Convert -1/3 to 3, since its perpendicular. then plug (2,5) for y=3x+b. The answer should be y=3x-1
the one of the following is NOT a measure of central tendency?____
a) mean. B) median. c) range. d) mode
Answers
Answer:
D). Mode
Step-by-step explanation:
I hope this helps!! Have a good day!
Answer:
they all are.
Step-by-step explanation:
They all are a measure of central tendency Standard deviation is not. Hope this helps :D
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5. (3a - 3)(5a + 5)
Answers
The answer should be 15a^2 - 15
This picture should explain the steps.
Hope this helps!!
Brainliest?
simplify each expression using the distributive property
9(-7q-6)
Answers
Answer:
-63q-54
Step-by-step explanation:
When using the distributive property, you multiply everything inside of the parentheses by the number outside of the parentheses.
9(-7q-6)
-63q-54
Hope this helps, and have a great day o(*￣▽￣*)ブ
3x −4 = 11 what is the answer
Answers
Answer:
x=5
Step-by-step explanation:
Answer:
the answer is x=5
I WILL GIVE BRAINLY
Angela has 5 fewer quarters than twice the number of her dimes. If d represents
the number of dimes Angela has, which expression represents the total number of
Angela’s quarters and dimes?
A. 2d – 5
B. 5 – 2d
C. d + (2 – 5d)
D. d + (2d – 5)
PLSSSSS SHOW YOUR WORK PLSSS
Answers
Answer:
D
Step-by-step explanation:
We will let d represent the amount of dimes Angela has.
Angel has 5 fewer quarters than twice the number of dimes.
Twice the number of dimes will be 2d.
Then, 5 fewer will yield 2d-5.
Therefore, the amount of quarters Angela has is 2d-5.
Then, the total amount of coins (dimes and quarters) together, will be:
[tex]d+(2d-5)[/tex]
The first part is the amount of dimes.
And the second part is, as we determined, the amount of quarters.
Therefore, our answer is D.
A wedding costs $2,460 for 20 guests. How much did the wedding cost per person?
Answers
Answer:
123 PER PERSON
Step-by-step explanation:
All you have to do is divide 2,460 by 20 to get 123
$123.00 per person
Explanation :
Division (divide) -
2,460 ➗ 20 = 123
Too make sure it’s correct use multiplication
(multiply) -
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What is 200% of 190?
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On the weather map, what does the symbol shown below represent?
A curved line with half circles is shown
Flurries
Showers
T-Storms
Warm Front
Answers
Answer: Warm font or showers
Step-by-step explanation: Hope it helped! If you can, Can I please have brainliest? I need a few more
You had some money and then spent $7.49. Now you have $6.21. How much
did you originally have? _____
Answers
Answer:
Step-by-step explanation:
7.49+6.21= 13.70
what is 3/4 divided by 1/2
Answers
Options and question in image <3
Answers
Answer:
-½(30) = -15
Step-by-step explanation:
Marta's pool decrees ½ inch each day, so that would be -½ each day. You would take that -½ and multiply it by 30 so you can find out the decrees in inches over 30 days so the equation would be -½ × 30 = -15 (im sorry if that didn't make sense)
a)
Multiply:
2y x 6y2 x (-4y)
Answers
Answer:
-48y⁴
Step-by-step explanation:
2y × 6y² × (-4y)
-48y⁴
2y x 6y*2 x(-4y) =
-48y*4