Question
1.) A binomial experiment with probability of success = p 0.84 and = n 11 trials is conducted. What is theprobabilitythat the experiment results in
1.) A binomial experiment with probability of success
=p0.84
and
=n11
trials is conducted. What is theprobabilitythat the experiment results in fewer than
9
successes?
Do not round your intermediate computations, and round your answer to three decimal places. (If necessary, consult a list of formulas.)
2.)A rainstorm in Portland, Oregon, has wiped out the electricity in about
5%
of the households in the city. A management team in Portland has a big meeting tomorrow, and all
6
members of the team are hard at work in their separate households, preparing their presentations. What is the probability that none of them has lost electricity in his/her household? Assume that their locations are spread out so that loss of electricity is independent among their households.
Round your response to at least three decimal places. (If necessary, consult a list of formulas.)
3.) There are
36,000
adults living in Palm City. In examining attitudes toward the news, a research group asked a random sampleof Palm City adults "What is your main source of news?" The results are shown below.
Main Source of News | Number of Adults |
---|---|
Newspapers | 65 |
Internet | 87 |
Television | 131 |
Radio | 25 |
Other | 45 |
Based on the sample, predict the number of adults in Palm City whose main source of news is television or the internet. Round your answer to the nearest whole number. Do not round any intermediate calculations.
4.) Let
X
be a random variable with the following probability distribution.
Value x of X | P=Xx |
---|---|
0 | 0.15 |
10 | 0.10 |
20 | 0.05 |
30 | 0.35 |
40 | 0.05 |
50 | 0.30 |
Complete the following. (If necessary, consult a list of formulas.)
|
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started