According to chebyshevs theorem how many students scored, Ask an Expert

Statistics

1. For a particular sample of 50 scores on a psychology exam, the following results were obtained.

First quartile = 44 Third quartile = 68 Standard deviation = 9 Range = 55
Mean = 51 Median = 54 Mode = 71 Midrange = 64
Answer each of the following; show all work.
- What score was earned by more students than any other score? Why?
- What was the highest score earned on the exam?
- What was the lowest score earned on the exam?
- According to Chebyshev's Theorem, how many students scored between 24 and 78?
- Assume that the distribution is normal. Based on the Empirical Rule, how many students scored between 24 and 78?

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M9443856

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

Only 35 of the drivers in a particular city wear seat belts

Only 35% of the drivers in a particular city wear seat belts. Suppose that 20 drivers are stopped at random what is the probability that exactly four are wearing a seatbelt? (Round your answer to 4 decimal places)

Suppose that 1 of the employees of a certain company use

Suppose that 1% of the employees of a certain company use illegal drugs. This company performs random drug tests that return positive results 99% of the time if the person is a drug use. However, it also has a 2% false p ...

John plans to take three suits on his business trip if john

John plans to take three suits on his business trip. If John owns 8 suits, how many ways can the 3 suits be selected?

The shareholders of a company need to elect six directors

The shareholders of a company need to elect six directors and there are 150,000 shares outstanding. 1). What is the minimum number of shares they need to own to make sure that they can elect at least one director if the ...

The number of people arriving for treatment at an emergency

The number of people arriving for treatment at an emergency room can be modeled by a Poisson process with a mean of 7 people per hour. How many people do you expect to arrive during a 55-minute period?

A firm evaluates all of its projects by applying the irr

A firm evaluates all of its projects by applying the IRR rule. Year Cash Flow 0 -$ 153,000 1 78,000 2 67,000 3 49,000 What is the project's IRR? If the required return is 11 percent, should the firm accept the project? Y ...

You are given the sample mean and the population standard

You are given the sample mean and the population standard deviation. Use this information to construct the 90% and 95% confidence intervals for the population mean. A random sample of 44 gas grills has a mean price of $6 ...

You know that the price of sunland inc stock will be 36

You know that the price of Sunland, Inc., stock will be $36 exactly one year from today. Today the price of the stock is $34. Determine what must happen to the price of Sunland, Inc., today in order for an investor to ge ...

An insurance company will pay dave 220000 the market value

An insurance company will pay Dave $220,000 (the market value of the house) should his house be destroyed by fire during the year. In return, Dave pays the insurance company $1280 that year (called the "premium") for tha ...

A coin is randomly picked from a collection of 10 coins the

A coin is randomly picked from a collection of 10 coins, the ith coin having a probabiliity i/10 of coming up heads. The coin in then flipped repeatedly until a head appears. Let X be the number of flips necessary. Find ...

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

Recent Questions

Ask Statistics and Probability Expert