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sleet_krkn [62]
3 years ago
7

Steve surveyed the students in his class to find out their favorite sport. The table shows the results of the survey. What perce

nt of Steve's classmates did not select soccer as their favorite sport?
Mathematics
2 answers:
givi [52]3 years ago
7 0
We need to see an image of the table
kakasveta [241]3 years ago
6 0
Using the info you just gave,
<span>Basketball, 8 studentsfootball, 7 studentsSoccer 12 studentsother, 13 students
We can now figure out the percentage of students that did NOT select soccer.

First, you need to add all the students together.
8 + 7 + 12 + 13
You get 40 students all together.
Now, add together the students that DID NOT choose soccer.

7 + 8 + 13 = 29
That means that 28/40 of the students did not choose soccer.
Now, convert that to a percentage.

28/40 = 0.7
To make that into a percentage, multiply by 100
Thus, the percentage of students that did not select soccer is 70%.
Hope this helped!</span>
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The total cost of the least expensive fence would be $800.

To minimize perimeter and maximize area we take factors that are as close to equal as possible.  In this case, the closest whole number factors are 200 and 100.  Since the north and south faces cost less, we will make those 100 ft and make the more expensive east and west faces 200 ft.

100 ft × $2/ft = $200 per side × 2 sides = $400 for the north and south facing sides.

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6 0
2 years ago
A normal population has a mean of 19 and a standard deviation of 5.
dangina [55]

Answer:

a) Z = 1.2

b) 38.49% of the population is between 19 and 25.

c) 34.46% of the population is less than 17.

Step-by-step explanation:

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by

Z = \frac{X - \mu}{\sigma}

After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X. If we need to find the probability that the measure is larger than X, it is 1 subtracted by this pvalue.

For this problem, we have that

A normal population has a mean of 19 and a standard deviation of 5, so \mu = 19, \sigma = 5.

(a) Compute the z value associated with 25

This is Z when X = 25

Z = \frac{X - \mu}{\sigma}

Z = \frac{25 - 19}{5}

Z = 1.2

(b) What proportion of the population is between 19 and 25?

This is the pvalue of Z when X = 25 subtracted by the pvalue of Z when X = 19.

X = 25 has Z = 1.2, that has a pvalue of 0.8849.

X = 19 has Z = 0, that has a pvalue of 0.5000.

So 0.8849-0.500 = 0.3849 = 38.49% of the population is between 19 and 25.

(c) What proportion of the population is less than 17?

This is the pvalue of Z when X = 17

Z = \frac{X - \mu}{\sigma}

Z = \frac{17 - 19}{5}

Z = -0.40

Z = -0.40 has a pvalue of 0.3446.

This means that 34.46% of the population is less than 17.

7 0
2 years ago
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astra-53 [7]
Since there are 13 diamonds, there are 39 non diamonds (52-13)
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