1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
jeka57 [31]
3 years ago
13

Angelita and Cynthia like to play a video game against each other that is scored by round. The goal is to score as many points a

s possible in each round. Here are summary statistics how many points they each score per round:
Mean Standard deviation
Angelita \mu_A=900μ
A
​
=900mu, start subscript, A, end subscript, equals, 900 \sigma_A=96σ
A
​
=96sigma, start subscript, A, end subscript, equals, 96
Cynthia \mu_C=800μ
C
​
=800mu, start subscript, C, end subscript, equals, 800 \sigma_C=72σ
C
​
=72sigma, start subscript, C, end subscript, equals, 72
Both distributions are approximately normal. Suppose we choose a round at random and calculate the difference between their scores. We can assume that their scores each round are independent.
Find the probability that Angelita's score is higher than Cynthia's.
You may round your answer to two decimal places.
P\left(\text{Angelita higher}\right)\approxP(Angelita higher)≈
Mathematics
1 answer:
ladessa [460]3 years ago
8 0

Answer:

0.80

Step-by-step explanation:

Khan academy

You might be interested in
- (x + 2)2 + (y - 9)2 = 1
telo118 [61]

Answer:

x+y=-5.75

Step-by-step explanation:

Ⓗⓘ ⓣⓗⓔⓡⓔ

Well, you would simply need to use the distributive property!

-(2)x-(2)2+(2)y-(2)9=1

-2x-4+2y-18=1

Then you need to add/subtract so the similar numbers are together.

-2x+2y-22=1

-2x+2y=23

x+2y=-11.5

x+y=-5.75

(っ◔◡◔)っ ♥ Hope this helped! Have a great day! :) ♥

Please, please give brainliest, it would be greatly appreciated, I only a few more before I advance, thanks!

8 0
3 years ago
The circumstances of Z is 84cm. What is the length of XY (the mirror arc)
Serga [27]

Answer:

B

Step-by-step explanation:

arc length = circumference × fraction of circle

                 = 84 ×\frac{90}{360} = 21 cm


8 0
3 years ago
On a coordinate plane, a dashed straight line has a positive slope and goes through (negative 3, 1) and (0, 3). Everything to th
Rom4ik [11]

The linear equality represented by the graph as,\rm y > \frac{2}{3} x+3

<h3>What is the definition of inequality?</h3>

Inequality is a sort of equation in which the equal sign is missing. As we will see, inequality is defined as a statement regarding the relative magnitude of two claims.

The slope of the dashed line is found as;

\rm m = \frac{y_2-y_1}{x_2-x_1}  \\\\\ m = \frac{3-1}{0+3} \\\\ m= \frac{2}{3}

The slope-intercept form is;

y=mx+c

Substitute the obtained value;

\rm  y = \frac{2}{3}x+3

We are aware that the given line Is a dashed line, and everything to its left is shadowed.

Hence, the linear equality is represented by the graph as,\rm y > \frac{2}{3} x+3

To learn more about inequity, refer to brainly.com/question/20383699

#SPJ1

4 0
2 years ago
Four friends bought tickets to the school play. If it cost then a total of $28, Which equation could be used to find how much ea
amm1812

Answer:

4x = $28

Step-by-step explanation:

5 0
3 years ago
g In R simulate a sample of size 20 from a normal distribution with mean µ = 50 and standard deviation σ = 6. Hint: Use rnorm(20
Illusion [34]

Answer:

> a<-rnorm(20,50,6)

> a

[1] 51.72213 53.09989 59.89221 32.44023 47.59386 33.59892 47.26718 55.61510 47.95505 48.19296 54.46905

[12] 45.78072 57.30045 57.91624 50.83297 52.61790 62.07713 53.75661 49.34651 53.01501

Then we can find the mean and the standard deviation with the following formulas:

> mean(a)

[1] 50.72451

> sqrt(var(a))

[1] 7.470221

Step-by-step explanation:

For this case first we need to create the sample of size 20 for the following distribution:

X\sim N(\mu = 50, \sigma =6)

And we can use the following code: rnorm(20,50,6) and we got this output:

> a<-rnorm(20,50,6)

> a

[1] 51.72213 53.09989 59.89221 32.44023 47.59386 33.59892 47.26718 55.61510 47.95505 48.19296 54.46905

[12] 45.78072 57.30045 57.91624 50.83297 52.61790 62.07713 53.75661 49.34651 53.01501

Then we can find the mean and the standard deviation with the following formulas:

> mean(a)

[1] 50.72451

> sqrt(var(a))

[1] 7.470221

5 0
3 years ago
Other questions:
  • You want to determine the height of the screen at a drive-in movie theater. You use a cardboard square to line up the top and bo
    14·1 answer
  • Find 100,000 more than 3,489,234.
    9·1 answer
  • What is 28/49 in simplest form?
    7·1 answer
  • Find the value of x.<br><br> log x 8 = 0.5<br><br> A. 4<br><br> B. 16<br><br> C. 32<br><br> D. 64
    11·1 answer
  • write the equation of a line that is parallel to y = -3/2x - 1 and that passes through the point (4, 6)?
    7·1 answer
  • A local little league have a total of 90 players, of whom 40% are left-handed. How many left-handed players are there?
    15·1 answer
  • If you placed $1,000.00 in a savings account with an interest rate of 4.5% month versus an account with 3.75% month, how much in
    5·1 answer
  • Mitchell has decided to give his dog a longer leash to roam in the backyard. If the new 7 ft. leash is tied to the center pole i
    7·1 answer
  • X= - 3/4Y -5. Please put this in slope intercept.
    5·2 answers
  • One-eighth of the parts tooled by a machine are rejects. How many parts were tooled
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!