Statistics
posted by Brahmprakash .
In a study by Peter D. Hart Research Associates for the Nasdaq Stock Market, it was determined that 20% of all stock investors are retired people. In addition, 40% of all adults invest in mutual funds. Suppose a random sample of 25 stock investors is taken.
a. What is the probability that exactly seven are retired people?
b. What is the probability that 10 or more are retired people?
c. How many retired people would you expect to find in a random sample of 25 stock investors?
d. Suppose a random sample of 20 adults is taken. What is the probability that exactly seven adults invested in mutual funds?
e. Suppose a random sample of 20 adults is taken. What is the probability that fewer than six adults invested in mutual funds?
f. Suppose a random sample of 20 adults is taken. What is the probability that none of the adults invested in mutual funds?
g. Suppose a random sample of 20 adults is taken. What is the probability that 12 or more adults invested in mutual funds?
h. For parts e�g, what exact number of adults would produce the highest probability? How does this compare to the expected number

Statistics 
will
asdfasdfasdf
Respond to this Question
Similar Questions

bUSINESS
I NEED HELP TO FIND PENNY STOCKS AT NASDAQ. Penny stocks usually sell for less than $1.00 a share  although some investors consider any stock selling for less than $5.00 a share a penny stock. Please check with your instructor to … 
business math
#3 of case study: If Naomi invests in a stock portfolio, her returns for 10 or more years will average 10%12%. Naomi realizes that the stock market has higher returns because it is a more risky investment than a savings account or … 
General Education Statistics  MAT112
There are many ways people can invest their money. In mutual funds, the investor buys shares in a fund that buys investment instruments for the investor, commonly stocks, bonds, or fixed instrument investments. Investment fund managers … 
statistics
{Exercise 3.55} Morningstar tracks the total return for a large number of mutual funds. The following table shows the total return and the number of funds for four categories of mutual funds (Morningstar Funds500, 2008). a. Using the … 
Statistics  Probability
A mutual fund company has six funds that invest in the U.S. market and four funds that invest in foreign markets. An investor wishes to create a mutual fund portfolio composed of two U.S. funds and two foreign funds. Unknown to this … 
Statistics
You have received a yearend bonus of $5000. You decide to invest the money in the stock market and have narrowed your investment options down to two mutual funds. the following data represent the historical quarterly rates of return … 
statistics
The American Association of Individual Investors (AAII) polls its subscribers on a weekly basis to determine the number who are bullish, bearish, or neutral on the shortterm prospects for the stock market. Their findings for the week … 
College algebra
you invest 2500 in the stock market for one year. part of your investment was in stock that paid 10% interest and the remainders was in a stock that paid only 8%. if you made a total of 2,200 in interest how much did you invest in … 
math/statistics
In a survey of 200 employees of a company regarding their 401(k) investments, the following data were obtained. 150 had investments in stock funds. 78 had investments in bond funds. 60 had investments in money market funds. 46 had … 
math
In a survey of 200 employees of a company regarding their 401(k) investments, the following data were obtained. 150 had investments in stock funds. 78 had investments in bond funds. 60 had investments in money market funds. 46 had …