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lara [203]
3 years ago
12

Find the mean of the data set: 9 4 73 109

Mathematics
2 answers:
kakasveta [241]3 years ago
6 0
The mean is 7
hope this helped you!!
SpyIntel [72]3 years ago
5 0
I don’t understand how someone got the mean as seven... the mean is 48.75
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Mr. Moran chose 10 different test scores out of 50, and they are shown below. For the following set of data, find the mean test
frozen [14]

Answer:

39.5

Step-by-step explanation:

5 0
2 years ago
PLEASE HELP QUICK 10 POINTS AND I GIVE BRAINLEIST!!! what is the <br> GCF of 110 and 132
sleet_krkn [62]

Answer: 22 because 2x 11 = 22

Hope I helped

Pls give me brainlist.

Step-by-step explanation:

4 0
2 years ago
Suppose that many large samples are taken from a population and that the
rewona [7]

Answer:

0.22 -1 *0.029 =0.191

0.22 +1 *0.029 =0.249

And the best option would be:

D. (0.191 to 0.249)

Step-by-step explanation:

For this case we know that the mean is:

\bar X = 0.22

And the standard error is given by:

SE = 0.029

We want to construct a 68% confidence interval so then the significance level would be :

\alpha=1-0.68 = 0.32 and \alpha/2 =0.16. The confidence interval is given by:

\bar X \pm z_{\alpha/2} SE

Now we can find the critical value using the normal standard distribution and we got looking for a quantile who accumulate 0.16 of the area on each tail and we got:

z_{\alpha/2}= 1

And replacing we got:

0.22 -1 *0.029 =0.191

0.22 +1 *0.029 =0.249

And the best option would be:

D. (0.191 to 0.249)

5 0
3 years ago
PLZZZ HELPPPPPPPPPPP
Oliga [24]

Answer:

Step-by-step explanation:

29 5x+8+x+4=90

6x=78

x=13

30 3x-7+11x-1=90

14x=98

x=7

31 3x+x+8=180

4x=172

x=43

32 6x-1+5x-17=180

11x=198

x=18

7 0
3 years ago
PLEASE HELP ME!!!!!!! I’ll give 40 points
andrew-mc [135]

Answer:

350

Step-by-step explanation:

7 x 10 to the 7th power is 70000000 and 2x 10 to the 5th power is 200000, if you divide them yo get 350.

3 0
2 years ago
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