HomeworkLib
Question
I need help please

12. Find the mean, standard deviation and variance. Show your work. a. In your analysis of 30 MCC students % said that they a
o Yes = 9 No = 21 Nursing class No No zz zzz
math   Statistics-And-Probability   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

answer)

9 out of 30 said that they are in or looking to apply to a health related field

So answer is 9/30 = 30%

Mean is given by n*p = 30*0.3 = 9

Variance = n*p*(1-p) = 30*0.3*0.7 = 6.3

Standard deviation = √variance = √6.3 = 2.50998007960

0 0
Add a comment
Know the answer?
Add Answer to:
I need help please 12. Find the mean, standard deviation and variance. Show your work. a....
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • Having a hard time with the variance and standard deviation. Please help! Thank you!!! Check my...

    Having a hard time with the variance and standard deviation. Please help! Thank you!!! Check my work mode : This shows what is correct or incorrect for the work you have completed so far. It does not indicate completion. Return to quer 3 Calculate the mean, the variance, and the standard deviation of the following discrete probability distribution. (Negative values should be indicated by a minus sign. Round intermediate calculetions to at least 4 decimal places. Round your final answers...

  • Use a calculator to find the (a) mean (b) standard deviation (e) variance for Class Limits...

    Use a calculator to find the (a) mean (b) standard deviation (e) variance for Class Limits Frequency 10-20 21-31 32-42 43-53 54 64 65-75 5 10 7 18 7

  • Help An IQ test is designed so that the mean is 100 and the standard deviation...

    Help An IQ test is designed so that the mean is 100 and the standard deviation is 20 for the population of normal adults. Find the sample size necessary to estimate the mean IQ score of statistics students such that it can be said with 90% confidence that the sample mean is within 8 IQ points of the true mean. Assume that o = 20 and determine the required sample size using technology. Then determine if this is a reasonable...

  • 1) [5] Find the mean, median, variance, and standard deviation of the number of texts everyone...

    1) [5] Find the mean, median, variance, and standard deviation of the number of texts everyone in a family of six sent in a month. Show all work including a table like we created in class. Find answers to one decimal place. Be sure to use the appropriate symbols. Data: 162 40 129 61 68 107

  • Please help me from f) to v) Need to show all your work to get full...

    Please help me from f) to v) Need to show all your work to get full credit. No WORK, NO CREDIT For the following dada set find the followings: (Note: need to do appropriate estimations 100 pts Total) 1. d) Range (2 pts) h Coefficient of variance (5 pts) b) Median (2 pt) ) Mode (1 pt) g) Stand. Deviation (2 pt) a) Mean (5 pt) 0 Variance (8 pt) D Percentile of data value 2.5 (5 e) Mid-Range (2...

  • Given the following data. Find the mean , Variance and the standard deviation of the sample....

    Given the following data. Find the mean , Variance and the standard deviation of the sample. Classes           Freq.           X            XF         x – X          (x – X )2               ( x –X )2F 2 – 4                2 5 _ 7                  5 8 – 10               3 Show your work please, Thank You!

  • Find the mean, variance and standard deviation for the random variable X: Random Variable X -2...

    Find the mean, variance and standard deviation for the random variable X: Random Variable X -2 1 3 P(X = x) 0.1 0.3 .6 Show the calculations that you need for each part. You will get no credit for using your calculator or Excel and only giving the answer. You should write out: mean = ........ (show how the mean is calculated) Vairance = .............. Standard Deviation = ................

  • Can you please help me with my homework Need to show all your work to get...

    Can you please help me with my homework Need to show all your work to get full credit. No WORK, NO CREDIT For the following dada set find the followings: (Note: need to do appropriate estimations 100 pts Total) 1. b) Median (2 pt) d) Range (2 pts) h) Coefficient of variance (5 pts) c) Mode (1 pt) a) Mean (5 pt) e) Mid-Range (2 pt) ) z-score of 2.5(5 p) 0 Variance (8 pt) D Percentile of data value...

  • Consider a family of four people, aged 8, 10, 33, and 37 as a population a) Calculate the population variance and standard deviation for the ages. Show your work step by step b) Random samples of siz...

    Consider a family of four people, aged 8, 10, 33, and 37 as a population a) Calculate the population variance and standard deviation for the ages. Show your work step by step b) Random samples of size two are drawn with replacement from this population and their ages are recorded Find the variance and standard deviation for each sample (using the formula that involves divisions by n-1) and fill in the 3rd and 4th columns of the table Find the...

  • Question 8: (12 marks) For this question you are required to find the standard deviation for...

    Question 8: (12 marks) For this question you are required to find the standard deviation for a set of data. The answer alone will not achieve full marks. There are many tools available to calculate the standard deviation. Here you are required to use several of the tools and show your working out to earn the marks. The data is the test results of 21 students who sat a mathematics quiz worth 100 marks. Results: 60, 47, 17, 43, 30,...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT