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Tomtit [17]
3 years ago
6

Find the following list of data calculate a demean be the maid and see mode or mothers for the following numbers listed in the p

icture above above

Mathematics
1 answer:
Sholpan [36]3 years ago
4 0

Answer:

Mean = 4.8875

Median = 4.6

Mode = 4.5 and 7.7

Step-by-step explanation:

Mean is the sum of total of data divided by the sample size

Sum total = 1.5 + 4.7 + 6 + 7.7 + 7.7 + 4.5 + 2.5 + 4.5

Sum total = 39.1

Sample size = 8

Mean = 39.1/8

Mean = 4.8875

To get the median we need to first rearrange

1.5, 2.5, 4.5, 4.5, 4.7, 6, 7.7, 7.7

Median = 4.5 + 4.7/2

Median = 4.6

Hence the median is 4.6

Mode is the value occuring the most. Since 4.5 and 7.7 both occurs twice, hence the mode of the data is 4.5 and 7.7

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Answer:

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Step-by-step explanation:

What assignment and grade is this? I could try to help!?

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length of a trailer is 30 feet and each rack of bread is 4 feet long, What is the maximum number of racks that can fit I one row
Sonja [21]
7 because 7x4 is 28 and is u try to fit 8 it would be 32 so u can only fit 7
5 0
3 years ago
A boogie board that has a regular price of $6. If the sales tax on the boogie board is 7%, what is the total cost of the board?
zavuch27 [327]

Answer:

6.42$

Step-by-step explanation:

6.00 divided by 100 equals 0.6 multiplied by 7 equals 0.42 so the sales tax is 0.42 cents and the total is 6.42$

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3 years ago
Which of the following is the correct SI unit to use in measuring the mass of a boulder. Please help!!
LenKa [72]

For this case, the first thing you should know is the meaning of the acronym S.I.

S.I .: International system

The unit for the mass of any object in the international system is:

m: [kilograms]

Therefore, the unit of measurement of the mass of a boulder is kilograms.

Answer:

the correct SI unit to use in measuring the mass of a boulder is:

C. kilograms

8 0
3 years ago
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Assume that you want to test the claim that the paired sample data come from a population for which the mean difference is µd =
ahrayia [7]

Answer:

d: 2, 4, -6, 0, -1, -5, 0, 1

The second step is calculate the mean difference  

\bar d= \frac{\sum_{i=1}^n d_i}{n}= \frac{29}{8}=-0.625

The third step would be calculate the standard deviation for the differences, and we got:

s_d =\frac{\sum_{i=1}^n (d_i -\bar d)^2}{n-1} =3.378

The next step is calculate the statistic given by :

t=\frac{\bar d -0}{\frac{s_d}{\sqrt{n}}}=\frac{-0.625 -0}{\frac{3.378}{\sqrt{8}}}=-0.523

And the correct option would be:

a. t = -0.523

Step-by-step explanation:

We assume the following notation:

x=test value after , y = test value before

x: 34 39 28 33 27 23 35 33

y: 32 35 34 33 28 28 35 32

The system of hypothesis for this case is given by:

Null hypothesis: \mu_y- \mu_x = 0

Alternative hypothesis: \mu_y -\mu_x \neq 0

The first step is calculate the difference d_i=y_i-x_i and we obtain this:

d: 2, 4, -6, 0, -1, -5, 0, 1

The second step is calculate the mean difference  

\bar d= \frac{\sum_{i=1}^n d_i}{n}= \frac{29}{8}=-0.625

The third step would be calculate the standard deviation for the differences, and we got:

s_d =\frac{\sum_{i=1}^n (d_i -\bar d)^2}{n-1} =3.378

The next step is calculate the statistic given by :

t=\frac{\bar d -0}{\frac{s_d}{\sqrt{n}}}=\frac{-0.625 -0}{\frac{3.378}{\sqrt{8}}}=-0.523

And the correct option would be:

a. t = -0.523

5 0
4 years ago
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