Question

1 Descriptive measurement obtained from a whole population is termed as
statistics
sample
sample quote
parameter
2 Find the mean of 2t + 4, 5t - 4, 3t + 2, and 6t - 2
4
2t
4t
6t + 1
3 The mean of seven numbers is 10. If the sum of the first six terms is 62, find the number.
14
5
8
9

Answer 1

Answer on Question #61540 – Math – Statistics and Probability

Question

1 Descriptive measurement obtained from a whole population is termed as

statistics

sample

sample quote

parameter

Answer: parameter

Question

2 Find the mean of 2t + 4, 5t - 4, 3t + 2, and 6t - 2

4

2t

4t

6t + 1

Solution

$$Mean = \frac{(2t + 4) + (5t - 4) + (3t + 2) + (6t - 2)}{4} = \frac{16t}{4} = 4t.$$

Answer: 4t.

Question

3 The mean of seven numbers is 10. If the sum of the first six terms is 62, find the number.

14

5

8

9

Solution

$$\frac{62 + x}{7} = 10 \rightarrow 62 + x = 70 \rightarrow x = 70 - 62 \rightarrow x = 8.$$

Answer: 8.

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