### Description of mcq-probability

Assignment Help Basic Statistics
##### Reference no: EM13100748

One flight daily to a certain destination. The following information shows the probability distribution of late arrivals for that flight in the past month:

Number of hours late Number of days it occurred

0 to <3 hours 8

3 to <6 hours 11

6 to <9 hours 6

9 to <12 hours 4

12 to <15 hours 1

What is the probability that the flight will be at least 3 hours late?

A. 0.73

B. 0.37

C. 0.22

D. 0.27

What is the average number of hours that a flight is late?

A. 7.8 hours

B. 3.33 hours

C. 9 hours

D. 5.4 hours

#### Questions Cloud

 Empirical rule to determine scores : The mean SAT verbal score is 412, with a standard deviation of 90. Use the Empirical Rule to determine what percent of the scores lie between 412 and 592. (Assume the data set has a bell-shaped distribution.) Economics in a business environment : Students are required to write an essay on a significant, recent economic event or activity and discuss an economic activity or event of interest and apply it to theoretical models and economic laws introduced during your study of topics. List the two types of social determinants : List the two types of social determinants and explain how these factors impact the health and wellness of society. Randomly selected accountant student : Assume grades in college accounting class are normally distributed with a mean of 82 and a standard deviation of 7. what is the probability that a randomly selected student from this class will have a grade lower than 65? Description of mcq-probability : One flight daily to a certain destination. The following information shows the probability distribution of late arrivals for that flight in the past month: Information about probability-bay theorem : There is a 0.05 probability of thunderstorms in a major U.S. city. If there is a thunderstorm in that city, the probability is 0.28 that a flight departing that major city will be late. Creating precedence diagram of the operation : South Carolina Furniture Inc. produces all type of office furniture. The Executive Secretary is a chair that has been designed using ergonomics to provide comfort during long work hours. Number of swimmers per day who require lifeguard : At a national seashore, the number of swimmers per day who require lifeguard assistance averages 4.1, on any day when 7 or more swimmers are assisted, the lifeguards receive a \$20 bonus for extra effort. Calculate the acceleration of the object : Calculate the acceleration of the object for an elapsed time of t=1s. use the formula: x-x0=v0t+1/2at^2 x=4.5 m v0=6.0m/s x0=-3.7m

### Write a Review

#### Variance of systolic blood pressure

A doctor believes that the variance of systolic blood pressure is 470. A random sample of 20 patients found a variance of 525. What is the smaller critical value that would be used in a hypothesis test at a .05 significance level?

#### Confidence interval for the mean daily caloric intake

Find a 95% confidence interval for the mean daily caloric intake. Interpret this interval.

#### Confidence interval estimate of mean number migraine attacks

Construct the 95% confidence interval estimate of the mean number of migraine attacks for those treated with acupuncture.

#### Salary equity between the genders

What other information would you like to know to answer the question about salary equity between the genders? Why?

#### Computing probability of the specified events

Dunn Poitiac has compiled the following sales data regarding the number of cars sold over the past 60n selling days.  Answer the following questions for the sales data shown.

#### Determining probability distribution for x

Find the probability distribution for X defined as the number of defective items drawn (Hint: You have to find P(X=0), P(X=1) and P(X=2). You may have to use both multiplicative and additive rules to find P (X=1)).

#### Hypothesis testing concept

A sample of approx 25 students enrolled in the university points out that X (bar) = \$315.4 and s = \$43.20.

#### Question on anova and chi-square

In some ways, ANOVA is like what communications engineers refer to as "signal-to-noise ratio". What could I possibly mean by that statement?

#### Data modeling and forecast

Make an Excel line graph of the data on computer viruses. Discuss the underlying causes that might explain the trend or pattern.

#### Price-to-earnings ratio

The Price-to-Earnings ratio (P/E) of a publicly listed profit-making company is defined as the ratio of the stock price of the company to the earnings per share.

#### Measurement for each variable in data set

Open data file on your excel file AirlinePassengers . Point to the level of data (nominal, ordinal, ratio, or interval) measurement for each variable in data set. Notice tab for description gives information about data.

#### Problem based on combinatory

Problem based on combinatory - how many different license plates are possible?