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zmey [24]
3 years ago
12

The swimming pool is opened 8 hours a day the pool manager must divide pool time equally among 5 groups; camp, camp swim team, s

wim lessons, family swim, and open swim how much time should she allow for each group?
Mathematics
1 answer:
zmey [24]3 years ago
4 0

Answer:

1.6 hours for each group

Step-by-step explanation:

8 / 5 = 1.6

1.6 x 5 = 8

you have to share 8 hours equally among 5 groups so its just 8 / 5 and you get 1.6 and thats how many hours each team is going to get

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A production manager at a wall clock company wants to test their new wall clocks. The designer claims they have a mean life of 1
Harman [31]

The probability that the mean clock life would differ from the population mean by greater than 12.5 years is 98.30%.

Given mean of 14 years, variance of 25 and sample size is 50.

We have to calculate the probability that the mean clock life would differ from the population mean by greater than 1.5 years.

μ=14,

σ=\sqrt{25}=5

n=50

s orσ =5/\sqrt{50}=0.7071.

This is 1 subtracted by the  p value of z when X=12.5.

So,

z=X-μ/σ

=12.5-14/0.7071

=-2.12

P value=0.0170

1-0.0170=0.9830

=98.30%

Hence the probability that the mean clock life would differ from the population mean by greater than 1.5 years is 98.30%.

Learn more about probability at brainly.com/question/24756209

#SPJ4

There is a mistake in question and correct question is as under:

What is the probability that the mean clock life would differ from the population mean by greater than 12.5 years?

5 0
2 years ago
Which phrase correctly describes the expression 4 × 3 – 1?
EastWind [94]
B because 4x3 then -1
3 0
3 years ago
For the graph shown, determine which letter represents the mean, the median, and the mode. Letters may be used more than once.
olya-2409 [2.1K]

The correct labels are: Mean = C, Median = B and Mode = A

<h3>How to determine the labels?</h3>

The image that completes the question is added as an attachment

From the image, we can see that the graph is skewed left

In a left skewed distribution,

  • mean is less than the median
  • median is less than the mode

This means that:

Mean is the smallest and mode is the highest

Hence, the correct labels are:

Mean = C, Median = B and Mode = A

Read more about skewness at:

brainly.com/question/9329803

#SPJ1

7 0
2 years ago
The average marks obtain by three students is 15.if 2 students obtain 12 and 18 Marks respectively find the marks obtained by th
satela [25.4K]

Answer: 15

Step-by-step explanation:

Average is sum of scores/ number of scores, from the question, average is given as 15.

Let the missing score be x

Equation for the questionis represented as: 12 + 18 + x /3 = 15

30 + x /3 = 15

Cross multiply

30 + x = 15×3

30 + x = 45

Subtract 30 from both sides

30 + x -30 = 45 -30

x = 15.

Check:

12 + 18 + 15/3 = 15

45/3 = 15

I hope this is clear, please mark as brainliest answer

5 0
4 years ago
HELPPP I WILL MARK BRAINLIEST
Levart [38]

Answer:

D

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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