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Debora [2.8K]
3 years ago
11

What is the arithmetic mean of the following numbers? 10,6, 4, 4, 6, 4, 1

Mathematics
1 answer:
slamgirl [31]3 years ago
5 0

Answer:

5

Step-by-step explanation:

When you add up the values you get 35, then you divide it by the number of numbers in the set, which is 7, so when you divide 35/7, you end up with 5.

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Answer:

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5 0
3 years ago
Suppose that IQ scores have a bell-shaped distribution with a mean of 95 and a standard deviation of 15. Using the empirical rul
professor190 [17]

Answer:

2.5% of IQ scores are no more than 65

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Mean = 95

Standard deviation = 15

Using the empirical rule, what percentage of IQ scores are no more than 65?

65 = 95 - 2*15

So 65 is two standard deviations below the mean.

By the Empirical Rule, 95% of the measures are within 2 standard deviation of the mean. Of those 5% which are not, 2.5% are more than 2 standard deviations above the mean and 2.5% are more than 2 standard deviations below the mean.

So 2.5% of IQ scores are no more than 65

3 0
3 years ago
What is the slope of y = 4 - 2x
NISA [10]

compare with y=mx+c

then

y=4-2x

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8 0
2 years ago
Read 2 more answers
What does -12(4+g)=?
dolphi86 [110]

Answer:

-48-12g

Step-by-step explanation:

Use the distributive property to get your answer

6 0
3 years ago
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The circumference of one of the smaller circles is 12 cm. Find the circumference of the larger circle.
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The answer is b , 247 cm
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3 years ago
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