863 Answered Questions for the topic Statistics Question

Statistics Question


what is the probability that a single car of this model emits more than 0.07 g/mi of NOX?

I need help please.
Statistics Question


Average monthly electric bill

An electric company found the relationship between house size (x, in square feet) and monthly electric bill (y, in dollars) is given by yˆy^ = 0.03x + 18.50. Use this least squares line to predict... more
Statistics Question


How large a sample n would you need to estimate p with margin of error 0.04 with 95% confidence? Assume that you don't know anything about the value of p.

A local board of education conducted a survey of residents in the community concerning a property tax levy on the coming local ballot. They randomly selected 850 residents in the community and... more
Statistics Question


a die is rolled 10 times what is the chance of obtaining exactly 2 sixes

 This question is based off of a problem set given by my instructor.
Statistics Question Statistics


In order to get accepted into graduate school, you know you must score in the top 20% of scores on a standardized test.

If the test has a mean score of 800 and a standard deviation of 125, what is the lowest score you can achieve and still be admitted to the graduate school?


Probability question for Stats class help.

Suppose that we have  15 marbles in a jar. 7 of them are green, 2 of them are blue, and the rest are red. 1)What is the probability that the first marble we draw is blue?2)Suppose you drew a blue... more
Statistics Question Paired T Test 1 sample t Interval


AP Statistics T- test

An institute hosted 10 French teachers for 4 weeks.  At the beginning of the period, the teachers were given the Modern Language Association's listening test of understanding of spoken French. ... more
Statistics Question


A standardized test's scores are normally distributed with a mean a 500 and a standard deviation of 100.

If 1200 students take the test, how many would you expect to score over 650?Round your answer to the nearest whole number.
Statistics Question


How many movies has a typical middle schooler seen in the theater this year

use this data set. 0,1,1,1,1,1,2,2,2,2,3,3,3,5,7,10,10
Statistics Question


The following are speeds​ (mi/h) of cars measured with a radar gun. Determine the​ 5-number summary and boxplot for the data given below.

70   70   71   71     72   73   74  74 76   76 77 78 79 79 79
Statistics Question And Statistics Answer


find the z-score for the standard normal distribution where: p(z<+9)=0.8980

this is the entire question there is nothing else to ad
Statistics Question


statistic question

find the required sample size for sample to construct a 95% confidence interval for the population meant that has sampling error SE=0.25, and it is given that population standard deviation is 7.5


There is a 88.4% chance that my value of x is 30 or greater. If I assume my data is normally distributed..

There is a 88.4% chance that my value of x is 30 or greater. If I assume my data is normally distributed, can I determine the likelihood that my value of x is 26, 27, 28, 29, 31, 32, 33, 34... more
Statistics Question Math Cards Calculation


Statistics, please assist with break down... I received 1% as the answer.. is this correct?

A computer manufacturer uses graphic cards made by two companies N and I. They are using the cards made by N in 80% of the computers and made by I on 20% of the computers. They have found that 2%... more
Statistics Question Statistics Stats


Find the value of the test statistic

I would really appreciate the help guys. Thanks again !   1)the claim is that the proportion of peas with yellow pods is equal to 0.25 the sample statistics from one experiment include 560 peas... more
Statistics Question



Two cards are drawn without replacement from a standard deck of 52 playing cards. What is the probability of choosing a queen for the second card drawn, if the first card, drawn without... more
Statistics Question


an urn holds 4 pink marbles, 6 white marbles, and 5 purple marbles.

 a) If you pick a marble at random, what is the probability that it is white?
Statistics Question Math Statistics Business Statistics


Statistics Question

The Price of a bond is uniformly distributed between $80 and $90.    a. What is the probability that the bond price will be greater than $83? b. What is the probability that the bond price will... more
Statistics Question


Statistics Question for Blind Bag purchases.

If the odds of getting a certain character in a blind bag is 1 in 5 and the bags cost $2.00 each, how much will you need to spend before you might get a certain one? Is it as simple as 5 x $2.00 =... more
Statistics Question


Find the area of the shaded region

A graph depicts IQ scores of adults and those scores are normally distributed with a mean of 100 and a standard deviation of 15. Find the area of the shaded region.... (between the IQ scores of 102... more
Statistics Question Math Help Math Help For College


Given r^2 and SST, Find SSE(need help today)

given r2=0.0798 and sst=769.54, compute sse
Statistics Question


Standard Deviation

Suppose it is known that the weights of a certain group of individuals are approximately normally distributed with a mean of 140 pounds and a standard deviation of 25 pounds. What is the... more
Statistics Question


In a hospital 60% of the patients are married. What’s the probability that a sample of one word with 8 patient, had 3 were married

In a hospital 60% of the patients are married.        
Statistics Question Math Statistics Probability


What is the probability of selecting a jury of all​ students?

The grade appeal process at a university requires that a jury be structured by selecting seven individuals randomly from a pool of eleven students and eight faculty.     (a) What is the... more

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