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2 years ago

What is the difference between the mean and the median of the following distribution?

1 answer:

6 0

First you find the median which is 4. The mean is calculated by the sum of the distribution divided by the amount of numbers in the distribution (20). The mean comes out to be 4.35. Subtract 4.35 from 4 and your answer is .35.

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2 years ago

Read 2 more answers

The explicit rule for a sequence is an=5(−2)^n−1

Murrr4er [49]

Answer:

3) $a_n=-2a_{n-1}$ , $a_1=5$

Step-by-step explanation:

Given that the explicit rule for a sequence is $a_n=5(-2)^{n-1}$ .

Now we need to find about what is the recursive rule for the sequence and match with the given choices to find the correct choice.

1) $a_n=-2a_{n+1}$ , $a_1=5$

2) $a_n=-5a_{n+1}$ , $a_1=2$

3) $a_n=-2a_{n-1}$ , $a_1=5$

4) $a_n=-5a_{n-1}$ , $a_1=2$

Plug n=1 into given formula to get first term

$a_n=5(-2)^{n-1}$

$a_1=5(-2)^{1-1}=5(-2)^{0}=5(1)=5$

base of the exponent part is (-2) so that means we need to multiply -2 to the previous term to get nth term

Hence correct choice is: 3) $a_n=-2a_{n-1}$ , $a_1=5$

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2 years ago

Solve the inequality. –28 4 k < 4 k < 21

KengaRu [80]

Answer:

I think it would be k < 4

Step-by-step explanation:

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3 years ago

Casey bought 6 bags of apples. Each bag contained 5 apples. How many

Snezhnost [94]

30 apples bc 5x6 (5 six times) =30

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2 years ago

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Answer:

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Step-by-step explanation:

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