Ask Question, Ask an Expert

+61-413 786 465

info@mywordsolution.com

Ask Statistics and Probability Expert

problem 1: The given table provides scores and sales are nine salesmen during last one year in a certain firm:

Text scores 14 19 24 21 26 22 15 20 19

Sales (in 000'Rupees) 31 36 48 37 50 45 33 41 39

find out the Karl Pearson's Coefficient of Correlation and interpret the result.

x                 y            dx = x-20  dy = y-40    dxdy     dx2                 dy2
14              31                -6            -9           54       36                   81
19              36                -1            -4            4        1                    16
24              48                 4              8            32       16                  64
21              37                 1             -3            3         1                   9
26              50                 6             10            60       36                  100
22              45                 2              5             10        4                  25
15              33                -5             -7             35       25                 49
20              41                 0              1              0         0                  1
19              39                -1             -1             1         1                   1

Σx = 180  Σy = 180                                      Σdxdy = 93  Σdx2 = 120 Σdy2 = 346

problem 2
: Find out the probability of drawing a diamond card in each of consecutive draws from a well shuffled pack of cards, if the card drawn is not replaced after the first draw.

problem 3: A bag contains 5 white, 7 red and 8 black balls. If four balls are drawn one by one without replacement, find out the probability of getting all the white balls.

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M9426

Have any Question? 


Related Questions in Statistics and Probability

Name some marketing techniques and styles that you have

Name some marketing techniques and styles that you have encountered that demonstrate many of the strongpoints we learned in this course.

Where do cfos get their money newswhere do cfos get their

Where do CFOs get their money news? Where do CFOs get their money news? According to Robert Half International,   47% get their money news from newspapers, 15% get it from communication/colleagues, 12% get it from televi ...

In the game of roulette a player can place a 7 bet on the

In the game of? roulette, a player can place a ?$7 bet on the number 18 and have a 1/38 probability of winning. If the metal ball lands on 18?, the player gets to keep the ?$7 paid to play the game and the player is awar ...

Indigo environment corp just paid a dividend of 1 per share

Indigo Environment Corp. just paid a dividend of $1 per share. The dividends are expected to grow at 25% for the next eight years and then level off to 6% growth rate indefinitely. If the required return is 10%, what is ...

Why does a high standard deviation of a stocks rate of

Why does a high standard deviation of a stock's rate of return mean that that stock is risky? Explain. (Hint: Intuitively explain how we calculate standard deviation and what does it mean)

Imagine you are the chief adviser to the australian prime

Imagine you are the Chief adviser to the Australian Prime Minister. 1) Clearly explain to him the meaning of 'subprime debt'? What are the risks and advantages of such financial instruments? a) What is a CDO? b) What is ...

For the dataset38 39 41 42 42 43 43 45 45 47 50 50 51 51 53

For the dataset 38, 39, 41, 42, 42, 43, 43, 45, 45, 47, 50, 50, 51, 51, 53, 54 Without doing any calculations, estimate which of the following numbers is closest to the mean.

A national air traffic control system handled an average of

A national air traffic control system handled an average of 47,556 flights during 28 randomly selected days in a recent year. The standard deviation for this sample is 6,251 flights per day. Complete parts a through c be ...

A researcher is working on a study that examines the

A researcher is working on a study that examines the wellbeing of older adults. She has an interest in finding if there is a difference in life satisfaction scores (measured on a multi-item Likert scale) by ethnicity (Af ...

You want to you want to estimate the mean weight of

You want to you want to estimate the mean weight of quarters in circulation. A sample of 30 quarters has a mean weight of 5.649 grams in a standard deviation of 0.066 gram. Use a single value to estimate the mean weight ...

  • 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