Brittney Lord
2021-05-05
Answered

If there are 7 bands and 3 floats, in how many different ways can they be arranged?

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2abehn

Answered 2021-05-06
Author has **88** answers

total of 10 items they can be arranged in

Hence total number of ways

asked 2021-08-19

Based on the Normal model N(100, 16) describing IQ scores, what percent of peoples

asked 2021-08-20

Let X be a normal random variable with mean 12 and variance 4. Find the value of c such that P{X>c}=.10.

asked 2021-08-19

Let X represent the difference between the number of heads and the number of tails obtained when a coin is tossed n times.

What are the possible values of X?

What are the possible values of X?

asked 2021-10-26

Consider two products, A and B, both of which have the same purchase probability.
Product A has a population size of 1000 and a 50 percent awareness probability. Product
B has a population size of 10,000 and a 5 percent awareness probability. Which product
do you expect to sell more?
Product A

asked 2021-09-01

Jenny sells ‘honey tea’ to raise fund for homeless people. The probability of making a sale is, independently, 0.3 for each person she approaches.

What is the probability that she will makes 4 sales before the seventh person she approaches?

What is the probability that she will makes 4 sales before the seventh person she approaches?

asked 2021-11-17

You can type blindfold at your keyboard, but that comes at a disadvantage of making typos. Let us say that you are required to type the word FLASH. You might insert anextra letter (all 26 letters equally likely) with probability 0.1, skip any required letter with probability 0.1, or write the correct required letter with probability 0.8. What is the probability that, when required to type the word FLASH, you instead end up writing FAST?

Hint:

- Letters F, A, S are correct required letters

- L and H are skipped letters

- T is the extra letter

Hint:

- Letters F, A, S are correct required letters

- L and H are skipped letters

- T is the extra letter

asked 2021-09-14

A new car that is a gas- and electric-powered hybrid has recently hit the market. The distance travelled on 1 gallon of fuel is normally distributed with a mean of 45 miles and a standard deviation of 7 miles. Find the probability of the car travels less than 42 miles per gallon