4. In one of the biggest schools in Metro Manila, 80% of their high school students are known to have come from their elementary school. A random sample of 15 students will be taken for an interview regarding school policies. a. What is the probability that exactly 10 are from their elementary school? b. What is the probability that fewer than 3 of them are from their elementary school? c. Give the average number of students from their elementary school who were chosen in the random sample.

4. In one of the biggest schools in Metro Manila, 80% of their high school students are known to have come from their elementary school. A random sample of 15 students will be taken for an interview regarding school policies. a. What is the probability that exactly 10 are from their elementary school? b. What is the probability that fewer than 3 of them are from their elementary school? c. Give the average number of students from their elementary school who were chosen in the random sample.

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

See similar textbooks

Similar questions

Which BEST describes the shape of the distribution? Uniform Skewed right Skewed left Symmetrical
Buy balls online, use normal approximation to estimate the probability of getting exactly 52 bule balls in 100 balls. Assume that bule and red balls are equally likely.
Please answerrr
The value given below is discrete. Use the continuity correction and describe the region of the normal distribution that corresponds to the indicated probability. Probability of more than 5 passengers who do not show up for a flight
Find the proportion of Normally distributed observations with a z-score above -1.93. Give your answer to four decimal places.
Plz explain. Ty
Assignment: 1. What are the applications of Normal Distribution?
Use the accompanying table of z-scores and percentiles to find the percentage of data items in a normal distribution that lie between z=0.9 and 2-1.6. Click the icon to view the table of z-scores and percentiles KECI The percentage of data items in a normal distribution that lie between 2-0.9 and 2 1.6 is% (Round to two decimal places as needed.)
Find the proportion of Normally distributed observations with a zz-score above -1.94. Give your answer to four decimal places.
Explain why the Gaussian Distribution is the most important probability distribution in statistical analysis. Describe the conditions under which it maybe used as an approximation to the Poisson and Binomial Distributions.
Please answer asap
Please give me the right answer.