0
12.245
Wiki User
∙ 9y ago
Add your answer:
Earn +20 pts
If Tom gets a 70 on a physics test where the mean is 65 and the standard deviation is 5.8 where does he stand in relation to his classmates?
If Larry gets a 70 on a physics test where the mean is 65 and the standard deviation is 5.8, where does he stand in relation to his classmates
A normal distribution with a mean of 55 and a standard deviation of 6 is evaluated to solve a business problem. What is the probability that any value in the population is between 55 and 65?
Convert to Std Normal Distribution and calculate (or use java script) area under curve for probability (see related links). Z55= (55-55)/6 = 0 and Z65 = (65-55)/6 = 1.667. We need area under curve for Z from 0 to 1.667. From javascript = use between 0 & 1.667, obtain .4522 or 45.22% probability. From Table; 0.9525-0.5 = .4525 = 45.25% (use above; more accurate but this IS close).
Assuming that the heights of college women are normally distributed with mean 65 inches and standard deviation 2.5 inches what percentage of women are between 62.5 inches and 67.5 inches?
3
Which is the stronger correlation?
The stronger correlation will be the one whose absolute value is closest to one. For example, r = -.78 is stronger than r=.65, because: |r| = |-.78| = .78 > |r| = |.65| = .65
What is the mean mode median of 64 64 64 65 65 65 65 67 67 68 68 70 70 72 73 76 79 80?
64 64 64 65 65 65 65 67 67 68 68 70 70 72 73 76 79 80. NB Place the numbers in RANK order. In this case it is already done #1 MODE ; is the term that occurs most frequently. In this case it is '65' , as there are four lots of '65' #2 MEDIAN ; is the term that occurs at the ABSOLUTE middle of the ranked order. Since there are eighteen terms, there is no absolute middle term. So we take the two middle terms that have the same number of terms to their side, that is terms nine & ten. They are 67 & 68. We then add these two together and halve the result. Hence (67 + 68) / 2 = 67.5. This is the median term. #3 MEAN ; is the sum of all the terms, which is the divided by the number of terms. Hence (64+64+64+65+65+65+65+67+67+68+68+70+70+72+73+76+79+80)/18 = 69' NB Another way of calculating the mean is ((3x64)+(4x65)+(2x67)+(2x68)+(2x70)+72+73+76+79+80)/18 = 69 NNB The word 'average' is casually used in the non-mathematical world, but the correct term is MEAN.
If Tom gets a 70 on a physics test where the mean is 65 and the standard deviation is 5.8 where does he stand in relation to his classmates?
If Larry gets a 70 on a physics test where the mean is 65 and the standard deviation is 5.8, where does he stand in relation to his classmates
What percent is 55 of 65?
55% of 65 = 55% * 65 = 0.55 * 65 = 35.75
What is the absolute value of 6.5?
Absolute value of 65 is 65.
What are the factors of 55 and 65?
The factors of 55 are: 1, 5, 11, 55 The factors of 65 are: 1, 5, 13, 65
What is the average of 65 and 55 and 84?
The average of 65 and 55 and 84 is 68
If average height for women is normally distributed with a mean of 65 inches and a standard deviation of 2.5 inches then approximately 95 percent of all women should be between what and what inches?
A normal distribution with a mean of 65 and a standard deviation of 2.5 would have 95% of the population being between 60 and 70, i.e. +/- two standard deviations.
55 plus 27 plus 65 equals?
55 + 27 + 65 = 147
What are the prime factors of of 55 65?
55: 5, 11 65: 5, 13
What is the gcf of 35 55 and 65?
GCF(35, 55, 65) = 5.
What is the GCF of 20 55 65?
The GCF is 5.
What is the Absolute Location for Venezuela?
the absolute location of Venezuela is 8°N 65°W
What are the factors of 20 55 and 65?
The factors of 20 are: 1, 2, 4, 5, 10, 20 The factors of 55 are: 1, 5, 11, 55 The factors of 65 are: 1, 5, 13, 65
