### Probability of samples containing female students

Assignment Help Basic Statistics
##### Reference no: EM13100644

In a large university, 15% of the students are female. If a random sample of twenty students is selected,

a. what is the probability that the sample contains exactly four female students?

b. what is the probability that the sample will contain no female students?

c. what is the probability that the sample will contain exactly twenty female students?

d. what is the probability that the sample will contain more than nine female students?

e. what is the probability that the sample will contain fewer than five female students?

f. what is the expected number of female students?

#### Questions Cloud

 Question based on operations managment : A grocery chain is considering the installation of a set of 4 self-checkout lanes. The new self-checkout lane setup will replace 2 old cashier lanes that were staffed by a cashier and bagger on each lane. What is the amplitude of the subsequent oscillation : A 750 air-track glider attached to a spring with spring constant 10.5 is sitting at rest on a frictionless air track. A 475 glider is pushed toward it from the far end of the track at a speed of 118 . Affects of investment of ldc : Affects of investment of ldc:-Pick one country that has done well with investment(All good point)-Pick one country that has failed with private investment. Identify cues from body to diminish focus or energy : Explain ways you have identified cues from your body which point to diminished focus or energy when you are working on the project, reading, or studying. How did you sense it? Probability of samples containing female students : In a large university, 15% of the students are female. If a random sample of twenty students is selected, Confidence interval for the total amount of receivables : An Auditor of a small bsuiness has sampled 50 of 700 accounts. The sample mean total receivables is \$435, and the sample standard deviation is \$86. Find a 95% confidence interval for the total amount of receivables. Define what is the maximum speed of the glider : An air-track glider attached to a spring oscillates between the 8.00 mark and the 69.0 mark on the track. The glider completes 10.0 oscillations in 40.0 . Percent of price-to-earnings ratios : Given that the price-to-earnings ratios are uniformly distributed, answer the following questions. What percent of price-to-earnings ratios are between 1.90 and 2.48? Analyze three different kinds of non-parental child care : Using at least two outside sources, write down 2-3 page paper (excluding cover and reference pages) which analyzes the three different kinds of non-parental child care.

### Write a Review

#### Statistics in sports performance

When coaching or training athletes, the tests employed to predict performance or determine training methods incorporate statistical methods. Why are these methods so effective?

#### Exponential model for network growth

brief discussion telling why you chose this particular data set to study. As in discussion two, I am hoping that you will choose data that has some relevance to your life.

#### Determine correlation coefficient and regression

The city of Oakdale wishes to see if there is a linear relationship between the temperature and the amount of electricity used (in kilowatts).

#### Determining minimum time needed to complete project

In optimal solution, determine minimum time needed to complete project?

#### Determining probability of mean volume for sample

Based on this information, if department employee selects random sample of n = 9 containers, determine probability that mean volume for sample will be greater than 1.01 gallons?

#### Test the hypothesis that two variances are equal

For the samples summarized below, test the hypothesis that the two variances are equal, at α = 0.05

#### Decision regarding the null hypothesis

What is your decision regarding the null hypothesis and interpret.

#### Probability-inverse probability for normal distribution

Find the Probability and inverse probability for the given Normal distribution.

#### Calculating the location measures and dispersion measures

Calculate the difference in the average "clutter" between network and TV.

#### Describe the term interaction with example

What is an interaction? Describe an example and identify the variables within your population (work, social, academic, etc.) for which you might expect interactions?

#### Irrelevant information at expense of relevant information

The researchers found that subjects who answered immediately made the best decisions and that "the longer our participants thought about their answers, the more likely they were to include irrelevant information at the expense of relevant informat..

#### Measure of dispersion for given data

The weights (in pounds) of a sample of five boxes being sent by UPS are: 12, 6, 7, 3, and 10.