06/18/20

Data Analysis and Probabilit
An ordinary (fair) die is a cube with the numbers 1 through 6 on the sides (represented by painted spots). Imagine that such a die is rolled twice in succession and that the face values of the two... more
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06/18/20

The following table shows the number of overtime hours worked in one week per employee.

The following table shows the number of overtime hours worked in one week per employee.  Overtime hours 0 1 2 3 4 5 6 Number of employees 6 12 29 57 42 30 16 (a)  Define the random... more
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06/18/20

A square flower garden has a perimeter of 10 feet. Duncan uses stones to edge the garden. Each stone is 𝟣𝟤one-half-foot long. How many stones will Duncan need to edge the garden?

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06/17/20

the total sales made by a salesperson was $25,000 after 3 months and $68,000 after 23 months. predict the total sales after 41 months.
i will be so grateful if anyone can help me
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06/17/20

Statistics question
A manufacturer knows that their items have a normally distributed lifespan, with a mean of 13 years, and standard deviation of 1.3 years.The 4% of items with the shortest lifespan will last less... more
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06/17/20

Please help me with this Stats question!

A manufacturer knows that their items have a normally distributed length, with a mean of 6.3 inches, and standard deviation of 1.4 inches.If one item is chosen at random, what is the probability... more
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06/17/20

I need help with a problem from my statistics homework. I don't understand this...
A particular fruit's weights are normally distributed, with a mean of 640 grams and a standard deviation of 26 grams.If you pick one fruit at random, what is the probability that it will weigh... more
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06/17/20

I need help with a problem from my statistics homework. I don't understand this...
A manufacturer knows that their items have a normally distributed lifespan, with a mean of 12.4 years, and standard deviation of 1.7 years.The 3% of items with the shortest lifespan will last less... more
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06/16/20

Ratios and side lengths in relation to triangles
What is the perimeter of a basic 30-60-90 triangle (with side lengths equal to the ratio values)? What is the perimeter of a basic 45-45-90 triangle? What would the answers be in both estimated and... more
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06/16/20

stats homework please help
Assume that a procedure yields a binomial distribution with a trial repeated n=5 times. Use some form of technology to find the probability distribution given the probability p=0.721 of success on... more
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06/16/20

stats homework please help
When taking a 11 question multiple choice test, where each question has 5 possible answers, it would be unusual to get X or more questions correct by guessing alone.Give your answer for X above as... more
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06/16/20

Q1. The following table shows the number of overtime hours worked in one week per employee.
Overtime hours 0 1 2 3 4 5 6 Number of employees 6 12 29 57 42 30 16Find the mean of the random variable 𝑋. Explain your results
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06/16/20

The following table shows the number of overtime hours worked in one week per employee.
Overtime hours 0 1 2 3 4 5 6 Number of employees 6 12 29 57 42 30 16a) Define the random variable 𝑋.(b) Constructtheprobabilitydistribution.(c) Find the... more
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06/16/20

Help with a statistics problem
. Gardening: A gardener buys a package of seeds. Eighty percent of seeds of this type germinate. The gardener plants 90 seeds. a. Approximate the probability that fewer than 75 seeds germinate.
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06/16/20

Graphing word problem

An electrician charges (f) an initial fee of $20 and then $30 per hour. WHAT type of graph does it show.o A) a decreasing only graph B) an decreasing and increasing graphC) an increasing only graph
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06/16/20

Three ounces of cinnamon cost $2.40. If there are 16 ounces in 1 pound, how much does cinnamon cost per pound?
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06/16/20

help me please and thank you
Christine deposited $4000 into an account with 2.1% interest, compounded monthly. Assuming that no withdrawals are made, how much will she have in the account after 6 years?Do not round any... more
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06/16/20

Help me please!
A sports psychologist tested whether the number of team wins in the previous season can predict the number of wins in the following season in a sample of 33 teams. Complete the regression table for... more
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06/16/20

linear equation
A rectangular room is 2 times as long as it is wide, and its perimeter is 26 meters. Find the dimension of the room.
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06/16/20

he radius, R , of a sphere is 4.2 mm . Calculate the sphere's volume, V . Use the value 3.14 for π , and round your answer to the nearest tenth
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06/16/20

About 7% of the population has a particular genetic mutation. 300 people are randomly selected.
Find the standard deviation for the number of people with the genetic mutation in such groups of 300.
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06/16/20

About 10% of the population has a particular genetic mutation. 1000 people are randomly selected.
Find the mean for the number of people with the genetic mutation in such groups of 1000.
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06/16/20

A manufacturing machine has a 3% defect rate. If 7 items are chosen at random, what is the probability that at least one will have a defect?
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06/16/20

If a seed is planted, it has a 60% chance of growing into a healthy plant.
If 10 seeds are planted, what is the probability that exactly 3 don't grow?
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06/16/20

A baseball player has a batting average of 0.22. What is the probability that he has exactly 5 hits in his next 7 at bats?
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