8,958 Answered Questions for the topic statistics

Statistics

09/03/22

How to find y bar and s. How to calculate an interval. How to find a percentage of scores in the data set that fall within the interval?

Sanitation inspection of cruise ships. Refer to theCenters for Disease Control and Prevention studyof sanitation levels for 169 international cruiseships, Exercise 1.23 (p. 18). (Recall that... more
Statistics Math Logic

09/02/22

Probability Question

Bowl A=2 bb & 4 rbBowl B=8 bb & 4 rbBowl C=1 bb & 3 rbwe draw 1 ball from each bowl, what is the probability to draw a bb from bowlA if we know that we drew exactly a total of 2 bbbb=... more
Statistics

09/01/22

Is about the assignment chapter 5 basic probability question 15

A ball is drawn randomly from a jar that contains 3 red balls, 5 white balls, and 7 yellow ball. Find the probability of the given event.(a) A red ball is drawn;The probability is :   (b) A white... more
Statistics

09/01/22

Statistics Help?

In real-life applications, statistics helps us analyze data to extract information about a population. In this module discussion, you will take on the role of Susan, a high school principal. She is... more
Statistics

09/01/22

Math Question Stat

A pedestrian hit by the driver of an automobile at 25 mph has an 80% chance of surviving the collision. At 35 mph the change of being killed as a result of the collision is 80%. How many times more... more
Statistics

08/31/22

Why is my overall correlation higher than the subgroup correlations?

I ran correlations for each grade on student test scores and the number of levels they completed on an interactive learning program. The correlations for the grades ranged from .5-.7, so why is the... more
Statistics

08/30/22

An article in the Journal of Agricultural Science ["The

An article in the Journal of Agricultural Science ["The Use of Residual Maximum Likelihood to Model Grain Quality Characteristics of Wheat with Variety, Climatic and Nitrogen Fertilizer Effects"... more
Statistics

08/27/22

pls solve this doing it for last 10 days

The city of Timbaktoo was divided into three areas : the administrative district, other urban districts and rural districts. A survey of housing conditions was carried out and the following... more
Statistics Spss

08/24/22

Analyzing 3 different Likert scales

I have three surveys, all Likert scales. I need to compare them. One has a 1-7 scale, one has a 0-4 scale and one has a 1-6 scale. I was told they need to be the same scale. Could I just... more
Statistics

08/24/22

It is known that the birth weights of full-term newborn infants in the U.S. ha

It is known that the birth weights of full-term newborn infants in the U.S. have an approximately normal distribution with a mean weight of 6.8 lbs and a standard deviation of 1.7 lbs.Find the... more
Statistics

08/24/22

Let Z be a random variable with a Standard Normal distribution (

Let Z be a random variable with a Standard Normal distribution (). Calculate the following probability. Include all four decimal places in your answer. 
Statistics

08/24/22

Let Z be a random variable with a Standard Normal distribution (

Let Z be a random variable with a Standard Normal distribution (). Calculate the following probability. Include all four decimal places in your answer. p(z>−1.2)=
Statistics

08/24/22

Let Z be a random variable with a Standard Normal distribution (mu equals 0 comma space sigma equals 1). Calculate the following probability. Include all four decimal places in your answe

Let Z be a random variable with a Standard Normal distribution (). Calculate the following probability. Include all four decimal places in your answer.  
Statistics

08/23/22

The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget weights have a mean of 50 ounces and a standard deviation of 3 ounces.

The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget weights have a mean of 50 ounces and a standard deviation of 3 ouncesb) What percentage of the... more
Statistics Probability

08/21/22

Probability Question

A baker put 500 raisins into dough, mixed well, and made 100 cookies. You take a random cookie. What is the probability of finding at least 4 raisins in it? (Hint: use Poisson approximation to the... more
Statistics Probability

08/21/22

The number of cars washed in a certain car wash station is a Poisson random variable with a mean of 6 cars per hour

(a) What is the probability that next car arriving to this station will wait less than 45 minutes? (b) What is the probability that at least 1 cars will be washed in 30 minutes period?
Statistics Probability

08/21/22

The number of customers arriving per hour at a certain automobile service facility is assumed to follow a Poisson distribution with λ = 7 .

(a) Compute the probability that more than 10 customers will arrive in a 3-hour period. (b) What is the mean number of arrivals during a 4-hour period?
Statistics Probability

08/21/22

It is estimated that 80% of people in Cyprus take paracetamol for headache treatment. Out of 5 having headache, find the probability that exactly 2 will take paracetamol.

It is estimated that 80% of people in Cyprus take paracetamol for headache treatment. Out of 5 having headache, find the probability that exactly 2 will take paracetamol.
Statistics Probability

08/21/22

One prominent physician claims that 70% of those with lung cancer are heavy smokers. If his assertion is correct, find the probability that out of 10 such patients recently admitted to a hospital

(a) more than half are heavy smokers (b) exactly 4 are heavy smokers (c) less than 2 are non- smokers
Statistics Probability

08/21/22

If the probability of a defective bolt is 0.1, find

a)the meanb)the standard deviation for the distribution of defective bolts in a total of 400.
Statistics Probability

08/20/22

Probability of A give B

This is a probability question. What is the probability of A and B if the Probability of A|B = .6What is the Probability of A intersect B?
Statistics

08/17/22

You want to obtain a sample to estimate a population proportion.

You want to obtain a sample to estimate a population proportion. At this point in time, you have no reasonable estimate for the population proportion. You would like to be 98% confident that your... more

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.