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Inessa05 [86]
3 years ago
11

Jacob surveyed members of three different gyms and recorded the number of hours they exercised last week. The mean and standard

deviation (SD).
of the data he gathered, is shown in the table.
Gym A
Mean = 7
SD = 2.9
Gym B
Mean = 8
SD = 4.2
Gym C
Mean = 6
SD = 3.2
Use the information in the table to complete the following statement
The members of gym show the most consistency in the number of hours they exercised last week, because the
of this data set is the
Mathematics
2 answers:
Alexus [3.1K]3 years ago
5 0

Answer:

Step-by-step explanation:

Given that Jacob surveyed members of three different gyms and recorded the number of hours they exercised last week.

Table is as follows:

Gym     Mean       Std dev

  A            7            2.9

  B            8            4.2

  C            6            3.2

We know that std deviation is a measure of variation of the data set from the mean.  

Hence if std deviation is the least the data would be more consistent.

Here A has the least sd

Hence The members of gym show the most consistency in the number of hours they exercised last week, because the

of this data set is the one which has lowest std deviation

ANEK [815]3 years ago
4 0

Answer:

Step-by-step explanation:

Low value of Standard deviation represent the most of the numbers are very   close the mean value.

According to the given table GYM A Mean is 7 and SD is 2.9:;

It means gym A is most consistent in the number of hours they exercised last week.

Rest SD value is large as compare to 2.9<3.2<4.2....

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love history [14]

Answer:

The length of side x is x = \sqrt{6}

Step-by-step explanation:

Pythagorean Theorem:

In a right triangle, with sides a and b, and hypothenuse h, we have that:

a^2 + b^2 = h^2

In this question:

The vertical line on the sides means that both are equal, that is, measuring x, so a = b = x.

Hypothenuse is the square root of 12. So h = \sqrt{12}

x^2 + x^2 = (\sqrt{12})^2

2x^2 = 12

x^2 = \frac{12}{2}

x^2 = 6

x = \sqrt{6}

The length of side x is x = \sqrt{6}

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Answer:

5

Step-by-step explanation:

because it is asking what minus 9 is equal to -4

5 0
2 years ago
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When four times a number is decreased by 9, the result is 19. What is the number?
Novay_Z [31]

Answer:

7

Step-by-step explanation:

Working backwards:

19 + 9 = 28

28/ 4 = 7

Checking work:

7 x 4 = 28

28 - 9 = 19

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2 years ago
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2 years ago
4. Eric has 54 yards of fencing to use for a flowerbed. Some possible measurements are
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Answer:

B,C,F

Step-by-step explanation:

A=L*W

P=2L+2W

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2 years ago
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