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dimulka [17.4K]
3 years ago
8

For the next three questions, if computing the probabilities manually, carry four decimal digits in your calculations. Compute t

he probability of three occurrences in three time periods (to 4 decimals). Compute the probability of five occurrences in two time periods (to 4 decimals). Compute the probability of seven occurrences in one time period (to 4 decimals)

Mathematics
1 answer:
JulijaS [17]3 years ago
7 0

Answer:

See attachment

Step-by-step explanation:

According to the given information, the Poisson distribution with a mean of two occurrences per time period, therefore Let us define be the random variable with poisson distribution with mean , then the probability mass function of the poisson

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D) Suppose you pick one marble from the bag at random. Find the expected value of its number.
Vaselesa [24]

C) The probability that you pick at least one purple marble is 98%.

<h3><u>Probability</u></h3>

The question is incomplete, since the number of marbles of each color in the bag is missing: 3 blue, 5 green, and 2 purple marbles.

Now, to answer the questions, the following calculations must be done:

  • C) 100 - (2/9x9) = X
  • 100 - 2 = X
  • 98 = X

Learn more about probability in brainly.com/question/27656131

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5 0
2 years ago
Find the volume of the prism.
zubka84 [21]

Answer:

b I do believe good luck with the answer

4 0
3 years ago
About 5 out of 10 people entering a community college need to take a refresher mathematics course. If there are 970 entering​ st
Ksenya-84 [330]

Answer:

"6 out of 10 people" means the ratio of class:no_class is 6:4

990/10 = 99, the smallest the "class" and the "no_class" add up to is 10. And, generally, the total divides with that nicely, as in this case.

99(6) = 594 ----------- probably class

99(4) = 396 ------------------ probably no class

Total  = 990

I hope this helps

Step-by-step explanation:

BRAINLIEST?

4 0
3 years ago
Devaughn's age is three times Sydney's age. The sum of their ages is 84 . What is Sydney's age?
defon

the answer is 21 years old

4 0
4 years ago
In an experiment you do a chi-square test comparing observed and expected progeny. Your calculated chi square is 0.375. With 1 d
myrzilka [38]

Answer:

It mean that the observed progeny is similar than the expected progeny. There is no a relationship between the categorical variables.

Step-by-step explanation:

The Chi-squared test is used to test the relationship between categorical variables. A categorical variable is a non-numerical variable. The null hypothesis of the Chi-squared test is that categorical variables are independent; it means that the frequencies are not dependent on the variable. It is important to know that the Chi-squared test does not measure causality, it only measures the relationship. To reject the null hypothesis, you usually need a probability lower than 0.05, but in this case, the probability was way higher than 0.05, it was between 0.5 and 0.9.

4 0
3 years ago
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