divineprincess6977 divineprincess6977

27-12-2022
Mathematics

Answered

Twenty percent of U.S. adults have some type of mental illness. You randomly select 6 U.S. adults. Find the probability that the number of adults having some type of mental illness is:
a)exactly two
b)at least one
c)less than three
d)find the mean, variance, and standard deviation for this distribution

Answer :

Other Questions

Determine the population mean, variance, and standard deviation for the set of data. (Round your answers to two decimal places.) 3, 6, 8, 12, 13, 15 mean varian

Suppose that the duration of a particular type of criminal trial is known to have a mean of 21 days and a standard deviation of seven days. We randomly sample n

The ages of pennies at a particular bank follow a nearly normal distribution with mean 10.44 years with standard deviation 9.2 years. Say you take random sample

The costs (in dollars) of 10 college math textbooks are listed below. ( 16 pts)) 70 72 71 70 69 73 69 68 70 71 a) Find the median. b) Find the sample mean. ( 4p

You roll a die, winning nothing if the number of spots is odd, $2 for a 2 or a 4, and $8 for a 6. Round your answers to 3 decimal places (a) Find the expected v

A restaurant sells three sizes of shakes. The small, medium and large sizes each cost $2.00, $3.00, and $3.50 respectively. Let X represent the restaurant's inc

f(x)=3x²+42-6 g(x)=62-5²-2 Find (f+g)(x). O A. (f+g)(x) =-628+82 +42-4 O B. (f+g)(x) = 6r³-2r² +42-8 O c. (f+g)(x) = 9r³-2-8 OD. (f+g)(x) = 6x³+3x²-2-8

If a_1=1a 1 =1 and a_n=2a_{n-1}+1a n =2a n−1 +1 then find the value of a_4a 4

For the equation f(x) = 1.1 * (0.44) ^ x state the initial value C, the growth or decay factor a, and percent change R for each unit increase in x c = (Type an

Two fair dice are rolled. Find the joint probability mass function of x and y , when x is the largest value obtained on any die and y is the sum of the values.