Ask Question, Ask an Expert

+61-413 786 465

info@mywordsolution.com

Ask Statistics and Probability Expert

Question: Sampling senators The two-way table below describes the members of the U.S Senate in a recent year.

                            Male                   Female

Democrats               47                       13

Republicans             36                         4

If we select a U.S. senator at random, what's the probability that the senator is

(a) a Democrat?

(b) a female?

(c) a female and a Democrat?

(d) a female or a Democrat?

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M92570885

Have any Question?


Related Questions in Statistics and Probability

A firm that produces light bulbs claims that their

A firm that produces light bulbs claims that their lightbulbs last 1500 hours, on average. You wonder if the average might differ from the 1500 hours that the firm claims. To explore this possibility you take a random sa ...

What are the ways that it can help comply with legal

What are the ways that IT can help comply with legal requirements and social responsibilities surrounding the sales of alcohol?

What is the theory behind callable bonds and when are they

What is the theory behind callable bonds and when are they most likely to be called?

Plastic sheets made by a machine are periodically monitored

Plastic sheets made by a machine are periodically monitored for fluctuations in thickness. If the true standard deviation in thickness exceeds 2.0 millimeters, there is cause for concern about product quality. Past exper ...

Perform a conversion to compare costs between the two

Perform a conversion to compare costs between the two programs below, to find out which is the more expensive program. Program A: estimated cost in constant FY13 dollars: $16M Program B: estimated cost in constant FY19 d ...

Iq test scores of students are normally distributed with

IQ test scores of students are normally distributed with mean μ=100 and standard deviation σ=10. What is the 33th percentile of the IQ scores? For a randomly chosen student, what is the probability that his or her IQ sco ...

A stock price is currently 112 stock price move up by 10 or

A stock price is currently $112. Stock price move up by 10% or down by 14%. The risk-free interest rate is APR 2% with continuous compounding. What is the value of a six-month European put option with a strike price of $ ...

One study based on responses from 1 013 randomly selected

One study, based on responses from 1, 013 randomly selected teenagers, concluded that 43% of teenagers cite grades that their greatest source of pressure. Use a 0.05 significance level to test the claim that fewer than h ...

A researcher selects from a participant pool of 8 males and

A researcher selects from a participant pool of 8 males and 11 females. He determines that the probability of selecting 2 female participants is p = .335. Based on this probability, what strategy did the researcher use t ...

There is a new treatment for smokers to stop smoking in an

There is a new treatment for smokers to stop smoking. In an experiment, 85% of 300 smokers quit after 10 days of the treatment. What is the reasonable range for the success rate p of our new treatment? Which is the 95% c ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Why might a bank avoid the use of interest rate swaps even

Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate

Describe the difference between zero coupon bonds and

Describe the difference between zero coupon bonds and coupon bonds. Under what conditions will a coupon bond sell at a p

Compute the present value of an annuity of 880 per year

Compute the present value of an annuity of $ 880 per year for 16 years, given a discount rate of 6 percent per annum. As

Compute the present value of an 1150 payment made in ten

Compute the present value of an $1,150 payment made in ten years when the discount rate is 12 percent. (Do not round int

Compute the present value of an annuity of 699 per year

Compute the present value of an annuity of $ 699 per year for 19 years, given a discount rate of 6 percent per annum. As