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10
13
16
19
22
25
28
What is the mean?
What is the standard deviation?
What percentage of values should fall between 19 and 22?
Which value has a score of -2?

Sagot :

Ummayyahcidn

Answer:

mean is 19

Step-by-step explanation:

sorry that's all I know

Add all the numbers given:
10+13+16+19+22+25+28=133

Now divide it by 7 since there are 7 numbers

133/7=19
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