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agasfer [191]
3 years ago
9

PLEASE HELP ASAP

Mathematics
1 answer:
Sedbober [7]3 years ago
4 0

Brainly.com

What is your question?

Middle SchoolMathematics 5+3 pts

A water park keeps track of the number of times each visitor goes down water slides during their visit . The data shows the number of times 12 visitors went down a water slide. 4, 22, 16, 10, 11, 20, 20, 12, 6, 3, 11, 1 Create a histogram of this data.

Report25.03.2017

Answers

Portal0876 · Beginner

Know the answer? Add it here!

THE BRAINLIEST ANSWER!

taskmasters

Taskmasters Ambitious

Given:

12 visitors

Visitor # Frequency of going down a water slide

1 4

2 22

3 16

4 10

5 11

6 20

7 20

8 12

9 6

10 3

11 11

12 1

Pls. see attachment for the histogram.

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Answer:

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Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

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99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

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The normal distribution is symmetric, which means that 50% of the observations are above the mean and 50% are below.

Proportion of observations below 231:

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So 231 is three standard deviations above the mean.

Of the 50% of observations below the mean, all are below 231.

Of the 50% of observations above the mean, 99.7% are between the mean of 195 and three standard deviations above the mean(231).

So, the proportion of observations below 231 is:

P = 0.5*1 + 0.5*0.997 = 0.9985

Out of 4800:

0.9985*4800 = 4793

The number of observations in the data set expected to be below a value of 231 is of 4793.

4 0
2 years ago
(d) 12b + 5.65 = 12.13
-BARSIC- [3]

Answer:

D. 804.2

Step-by-step explanation:

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