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Statistics

01/20/23

Please help provide steps to answer these.

At a local high school, a random sample of students were selected and asked to choose their most favorite sport. The results are shown below. In Order -Baseball,Basketball, Football,... more

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Statistics

01/19/23

Binomial distribution

According to Masterfoods, the company that manufactures M&M’s, 12% of peanut M&M’s are brown, 15% are yellow, 12% are red, 23% are blue, 23% are orange and 15% are green. You randomly... more

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Statistics

01/19/23

A magazine ran a survey about a web site for downloading music. Readers could register their responses on the magazine's web site. Identify what is wrong.

The magazine has an interest in the survey results, so the source of the survey is questionable.B.The sample is a voluntary response sample, so there is a good chance that the results do not... more

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Statistics

01/19/23

A magazine ran a survey about a web site for downloading music. Readers could register their responses on the magazine's web site. Identify what is wrong.

statistics, what can go wrong with the survey

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Statistics Math

01/18/23

A data set with whole numbers has a low value of 40 and a high value of 114

Find the class width for a frequency table with seven classfind the class limits for a frequency table with 7 classes

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Statistics Math Probability

01/15/23

I need help with this question of probability

Male Female TotalAge 19 & under 4746 4517 9263Age 20 1625 1553 3178Age 21 1679 1627 3306Total--------------8050----7697-----15747Find... more

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Statistics

01/14/23

On a nationwide math test, the mean was 72 and the standard deviation was 10. If Roberto scored 75, what was his z-score? Round your answer to the nearest hundredth.

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Statistics

01/14/23

Please help answer with steps on how to do it.

The grade point averages (GPAs) of all college students are normally distributed with mean 2.1 and standard deviation 0.5.Part AAbout % of all students have the GPA at least 1.6.(Rounding the... more

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Statistics

01/13/23

Help Answer. For Part B 1. I put -1.88, -1.881, -1.885 as answers and they're still incorrect, how come?

The age of all farmers are normally distributed with a mean 51 years old and standard deviaiton 11 years old.Part AFind X such as 98% of all farmers are younger X years old.(1) Use the Normal table... more

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Statistics Math Sat Math

01/12/23

Healthful Habits Statistics

If 10% of the males of a population smoke cigars, and if 10% of the females of the same population smoke cigarettes, and if the probability of a mental birth impairment is 0.0 for neither parent... more

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Statistics

01/12/23

Answer each question with steps on how to do them

The speeds of vehicles passing through a construction zone are normally distributed with a mean of 47 miles per hour and standard deviation of 3 miles per hour.Part AIf 45% of vehicles passing... more

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Statistics

01/09/23

About 2% of the population has a particular genetic mutation. 600 people are randomly selected. Find the standard deviation for the number of people with the genetic mutation in such groups of 600.

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Statistics

01/08/23

What is the best way to analyze this

When studying anxiety in undergraduate nursing students, I also found that stress (PSS) was positively correlated with anxiety levels (STAI). I want to answer the question: Is stress in... more

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Statistics

01/07/23

Enter the probability as a fraction. P(at least one green) =

Suppose that you have 8 cards. 3 are green and 5 are yellow. The 3 green cards are numbered 1, 2, and 3. The 5 yellow cards are numbered 1, 2, 3, 4, and 5. The cards are well shuffled. Suppose that... more

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Statistics

01/06/23

Enter the probability as a fraction. P(at least one green) =

Suppose that you have 9 cards. 4 are green and 5 are yellow. The 4 green cards are numbered 1, 2, 3, and 4. The 5 yellow cards are numbered 1, 2, 3, 4, and 5. The cards are well shuffled. Suppose... more

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Statistics

01/04/23

Standard Normal Distribution

In a mid-size company, the distribution of the number of phone calls answered each day by each of the 12 receptionists is bell-shaped and has a mean of 60 and a standard deviation of 3. Using the... more

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Statistics

01/04/23

standard normal distribution

A company has a policy of retiring company cars; this policy looks at the number of miles driven, the purpose of trips, the style of the car, and other features. The distribution of the number of... more

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Statistics

01/04/23

Continous uniform distribution

The duration of a professor's class has a continuous uniform distribution between 50.0 minutes and 52.0 minutes. If one class is randomly selected, find the probability that the professor's class... more

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Statistics

01/03/23

intro to stats help

The uniform distribution of a random variable XX is given in the figure below..From the figure, what is P(X≥1.26)P(X≥1.26)?

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Statistics

01/02/23

intro to stats help!!!

A random experiment involves drawing a sample of 12 data values from a normally distributed population. The random variable is the z-score of the minimum of the data... more

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Statistics Probability

01/01/23

Probability of hearing about someone for the first time on the exact day they die

On the 31 December 2022, for the first time in my life, I heard about a celebrity, Anita Pointer of the Pointer Sisters. I woke up the next day, checked the news and saw she had died they day... more

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Statistics

12/31/22

getting confused

We want to conduct a hypothesis test of the claim that the population mean germination time of strawberry seeds is different from 18.1 days. So, we choose a random sample of strawberries.... more

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Statistics

12/31/22

I want to confirm if my answer is correct

1- The records of a computer retail store show that out of the 100 customers who purchased a desktop computer last month, all but 28 also purchased a service plan that extends the... more

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Statistics

12/26/22

When will we get a labrador dog

Labrador dog, which year, which day and date. Will we be happy?

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Statistics Econometrics

12/25/22

Panel data and Standard Error

I currently have a set of panel data pertaining to a certain set of companies with a filters like minimum market cap, revenue size etc. If I expand this dataset by adding data about companies which... more

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Please help provide steps to answer these.

Binomial distribution

A magazine ran a survey about a web site for downloading music. Readers could register their responses on the​ magazine's web site. Identify what is wrong.

A magazine ran a survey about a web site for downloading music. Readers could register their responses on the​ magazine's web site. Identify what is wrong.

A data set with whole numbers has a low value of 40 and a high value of 114

I need help with this question of probability

On a nationwide math test, the mean was 72 and the standard deviation was 10. If Roberto scored 75, what was his z-score? Round your answer to the nearest hundredth.

Please help answer with steps on how to do it.

Help Answer. For Part B 1. I put -1.88, -1.881, -1.885 as answers and they're still incorrect, how come?

Healthful Habits Statistics

Answer each question with steps on how to do them

About 2% of the population has a particular genetic mutation. 600 people are randomly selected. Find the standard deviation for the number of people with the genetic mutation in such groups of 600.

What is the best way to analyze this

Enter the probability as a fraction. P(at least one green) =

Enter the probability as a fraction. P(at least one green) =

Standard Normal Distribution

standard normal distribution

Continous uniform distribution

intro to stats help

intro to stats help!!!

Probability of hearing about someone for the first time on the exact day they die

getting confused

I want to confirm if my answer is correct

When will we get a labrador dog

Panel data and Standard Error

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A magazine ran a survey about a web site for downloading music. Readers could register their responses on the magazine's web site. Identify what is wrong.

A magazine ran a survey about a web site for downloading music. Readers could register their responses on the magazine's web site. Identify what is wrong.