Could someone please explain the steps and logic used to solve this problem?
Here are the answers, I just need help with how to get there.
a) 0.03087
b) 0.3087
c) 0.07203
d) 0.16807
e) 0.50
f) 0.293
Could someone please explain the steps and logic used to solve this problem? Here are the...
9. The four conditions required for using a Binomial distribution are. (a) A fixed number of trials (n). b) On each trial, there are two possible outcomes, one of which we call a "success" (c) On each trial, P(success) is the same (d) The outcomes of each trial are independent For each of the following decide if the random variable defined (X) is a Binomial variable or not. If it is not a Binomial variable, say which of the four...
5 According to The World Bank, only 9% ofthe population of Uganda had access to electricity as of 2009. Suppose we randomly sample 175 people in Uganda. Let X = the number of people who have access to electricity What is the probability distribution for X? Calculate the mean and standard deviation of X Based only on your results from part (b), is it unusual to get only 7 people out of this sample who have access to electricity? Why...
Week 7 1) The population from which a sample is drawn is: a) Always Normal in shape b) Bigger in size than the sample size (N is greater than ) c) A large number of subjects or people d) None of the above 2) The probability of 2 heads when we flip a coin twice is: a) 1 b).5 C) 25 d).75 e) Unknown 3) How many possible values of the variable "# of heads when a coin is flipped...
ee randomly selected households are surveyed. The numbers of people in the households are 4,5, and 9. Assume that samples of size n 2 are randomly selected with replacement from the population of 4, 5, and 9. Listed below are the nine d Complete parts (a) through (c). 4,4 4,5 4,9 5,4 5,5 59 9,4 95 9,9p a. Find the variance of each of the nine samples, then summarize the sampling distribution of the variances in the format of a...
5) A manufacturer of paper used for packaging requires a minimum strength of 1600 g/cm2. To check on the quality of the paper, a random sample of 10 pieces of paper is selected each hour from the previous hour's production and a strength measurement is recorded for each. The standard deviation σ of the strength measurements, computed by pooling the sum of squares of deviations of many samples, is known to equal 160 g/cm2, and the strength measurements are normally...
Consider a finite population with five elements labeled A, B, C, D, and E. Five possible simple random samples of size 4 can be selected. a. Choose the correct list of the 5 samples. - Select your answer - b. Using simple random sampling, what is the probability that each sample of size 4 is selected? C. Suppose we use Excel's RAND function to assign random numbers to the five elements: A(0.2826) B(0.9735) C(0.527) D(0.3673) E(0.5364). List the simple random...
Please hata persu is audited more than twice. 102, According to The world Bank, only 9% of the population of Uganda had access to electricity as of 2009. Suppose we randomly sample 150 people in Uganda. Let X the number of people who have access to electricity What is the probability distribution for X? b. a. Using the formulas, calculate the mean and standard deviation of x. c. Use your calculator to find the probability that 15 people in the...
please explain: 7. Probability theory is used in statistics to tell the possible error rate of extrapolating a sample to its population. a. True b. False 8. In general, the _________ the sample size, the more accurate the sample reflects the population. a. larger b. smaller 9. If sample size equals to population size, then _____________________ a. the sample would be useless b. the sample would perfectly reflect what the population is like 10. It is...
le Edit View History Bookmarks People Window Help 34% Fri May 17 11:20 p Take a Test murwo elmi ch all Episode O https://www.mathxl.com/Student/PlayerTest.aspx?testid- 194812266¢erwin yes Not S 2019-Spring 1740W murwo elmi &5/17/19 1053 PM Sign O Quiz: Chapter 6 Quiz Time Remaining: 01:05.22 Submit Quiz atistic This Question: 1 pt 4 of 15 (1 complete) This Quiz: 15 pts possible Assume a population of 3, 4, and 11. Assume that samples of size n-2 are randomly selected with replacement...
Help dentihy the sampling techniques used, and discuss potential sources of bias (f any). Explain. Assume the population of interest is the student body at a university Questioning students as they leave an athletic facility, a researcher asks 378 students about their dating habits What type of sampling is used? OA. Systematic sampling is used, because students are selected from a list, with a foxed interval between students on the list Cluster sampling is used, because students are divided into...