Related Searches: standard deviation formula calculating standard deviation standard deviation calculator explaining standard deviation population standard deviation symbol
Find the standard deviation of the data set {2, 18, 4, 16}.
Find the standard deviation of the data set {2, 18, 4, 16}. => 5 or 5 2 or 3 2 or 4 2..
A survey asks 'How much time do you spend in front of the TV in one we..
A survey asks 'How much time do you spend in front of the TV in one week? Suppose the responses are normally distributed, the mean is 10 hours and the standard deviation is 2 hours. What value in hours is one standard deviation above the mean, and one st..
The average age of technicians at B & T company is 26 years, with a s..
The average age of technicians at B & T company is 26 years, with a standard deviation of 6 years. The average salary of the technicians is $31,000 with a standard deviation of $4000. Is the variation in the salary of technicians more than the variation in th..
For a group of 200 candidates, the mean and standard deviation of scor..
For a group of 200 candidates, the mean and standard deviation of scores were found to be 40 and 15. Later on, it was discovered that the scores 43 and 35 were misread as 34 and 53. Find the corrected mean and standard deviation. => 39.955 and 14.97 or 31 and..
A sample of 30 RAM chips was tested for the average access time. The s..
A sample of 30 RAM chips was tested for the average access time. The standard deviation was found to be 2 nanosec. Find the 90% confidence interval for the true standard deviation. Assume that the variable is normally distributed. => between 1.7 and 2.6 or be..
What is the approximate area under the part of the normal curve that l..
What is the approximate area under the part of the normal curve that lies within 1 standard deviation of the mean? => 33.3% or 68% or 95% or 99.7%..
Find the highest control limit for a normally distributed curve with a..
Find the highest control limit for a normally distributed curve with a mean of 20 and a standard deviation of 3. => 23 or 29 or 11 or 26..
If 5% of truck carburetors are defective, then find the mean and stand..
If 5% of truck carburetors are defective, then find the mean and standard deviation of a lot of 400 carburetors. => 20, 4.36 or 4.36, 20 or 19, 4.36 or 20, 19..
If 20% of the computer chips are defective, then find the variance and..
If 20% of the computer chips are defective, then find the variance and standard deviation of a lot of 542 chips. => 86.72, 9.31 or 433.6, 108.4 or 108.4, 86.72 or 9.31, 86.72..
See what our Users say :
Best tutor ever. I can actually understand what to do in fraction and decimal division situations
It was a great pleasure working with this tutor was able to take me through the steps of my math problems which was very helpful because since I don't have lots of experience with math by the tutor doing the steps it helps me understand a great deal. Im so excited that Im finally getting this amazing service. We got so much done. thank you.
Incredible help, saved me from failing a test. Thank you so much. This tutoring is amazing! Explains things well, KUDOS - pam
Tutor Vista tutors actually helped me to think through some of the problems instead of just doing them for me.Now i am more confident with math ,Thank you all
Looking for More Help!
