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Juli2301 [7.4K]

3 years ago

15

I NEED HELP ASAP PLEASE! About what percentage of the data lies within 2 standard deviations of the mean in a normal distributio

n?
47.5%
68%
95%
99.7%

2 answers:

Ksivusya [100]3 years ago

5 0

I think the answer is the Third one

worty [1.4K]3 years ago

3 0

Answer:

c: 95%

Step-by-step explanation:

got it right on ed

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x = -1

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Tom had the following scores on math tests: 91, 95, 87 and 83. He has one more test this marking period. What is the lowest grad

Ad libitum [116K]

Answer:

94 or 95

Step-by-step explanation:

91 + 95 + 87 + 83 = 356

356/4 =89

average so far is 89

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3 years ago