What is c - b for six grade math

Mathematics

1 answer:

JulsSmile [24]2 years ago

4 0

Answer:

specify?

Step-by-step explanation:

give us a image

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There are 6 members on a board of directors. If they must elect a chairperson, a secretary, and a treasurer, how many different

KATRIN_1 [288]

The answer is c. 120

You need to go step by step.
For the chairperson you have six possibilities.
For the secretary you now have only five
And for the treasurer you are now down to six.
Now that means that. For each person elected as chairperson there’s 5 possibilities for the secretary (so 6X5) but there’s also 4 for the treasurer. You end up with an equation The is 6x5x4= 120

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2 years ago

The standard IQ test is designed so that the mean is 100100 and the standard deviation is 1515 for the population of all adults.

Natalija [7]

Answer:

The sample size should be approximately 151.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 100

Population standard deviation, σ = 15

We have to evaluate the sample size, n.

Alpha, α = 0.10