+61-413 786 465

info@mywordsolution.com

## Statistics

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

### The average time a person spends at the barefoot landing

The average time a person spends at the Barefoot Landing Aquarium Is 96 minutes. The standard deviation is 17 minutes, and this variable is normally distributed. What is the probability that a randomly selected visitor w ...

### You buy a mutual fund for 1000 it annually distributes 60

You buy a mutual fund for \$1,000. It annually distributes \$60 for seven years, after which you sell the shares for \$775. What is the annualized return on your investment? Use Appendix B and Appendix D to answer the quest ...

### Initial outlay is 16853year 1 5625year 2 5504year 3

Initial outlay is \$16,853 Year 1 \$5,625 Year 2 \$5,504 Year 3 \$5,892 Year 4 \$8,851 What is the discounted payback period? The discount rate is 10%...Round answer to two decimal points

### Babies weighing less than 55 pounds at birth are considered

Babies weighing less than 5.5 pounds at birth are considered "low-birth-weight babies." In the United States, 7.6% of newborns are low-birth-weight babies. The following information was accumulated from samples of new bi ...

### 6year 8 coupon bond with semi annual payments par value

6 year, 8% coupon bond with semi annual payments, Par Value = \$1000. 1) Find out price of the bond if YTM = 10%. 2) What happens to the bond price if YTM decreases 1 basis point? 3) Is the effect of 1 basis point decreas ...

### Blooper industries must replace its magnoosium purification

Blooper Industries must replace its magnoosium purification system. Quick & Dirty Systems sells a relatively cheap purification system for \$15 million. The system will last 5 years. Do-It-Right sells a sturdier but more ...

### 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 ...

### If you know the percentile rank is 50 the mean is 50 and

If you know the percentile rank is 50. The mean is 50 and the standard deviation is 5. What is the raw score, z score, and t score?

### The length of time a person takes to decide which shoes to

The length of time a person takes to decide which shoes to purchase is normally distributed with a mean of 8.21 minutes and a standard deviation of 1.90. Find the probability that a randomly selected individual will take ...

### 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 ...

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

## 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