The weights (in pounds) for a sample of adults before starting a weight-loss study are listed. What is the median of the weights 223, 235, 235, 268, 274, 285, 290
Median= 251.5
Find the range of the set of data 41, 38, 39, 45, 47, 41, 44, 41, 37, 42
Range = 10
Find the first quartile of the data set: 20,30,29,22,25,29,25,24,35,23,25,11,33,28,35
= 23
You roll a six-sided die. Find the probability of the event rolling a number less than 5
P(rolling a number less than 5) = 4/6
0.667
two cards are selected in sequence from a standard deck of 52 playing cards. find the probability that the second card is a queen given that the first card is a king.(assume that the king is not replaced.)
P(B/A)= 4/51=0.078
The weights (in pounds) for a sample of adults before starting a weight-loss study are listed. What is the mean weight of the adult 223, 235, 235, 268, 274, 285, 290
Mode 235
Find the mean 41, 38, 39, 45, 47, 41, 44, 41, 37, 42
Mean = 41.5
Find the second quartile of the data set: 20,30,29,22,25,29,25,24,35,23,25,11,33,28,35
Second Quartile
= 25
Find the probability of a randomly selecting a social networking side user who is 23 to 35 years old Ages 18-35 23-35 36-49 50-64 65 and over Freq. 156 312 254 195 58
P(ages) 23 to 35) = 0.32
Two cards are selected, without replacing the first card, from a standard deck of 52 playing cards. find the probability of selecting a king and then selecting a queen.
=0.006
The weights (in pounds) for a sample of adults before starting a weight-loss study are listed. What is the mean weight of the adult 274, 235, 223, 268, 290, 285, 235
258.6
Find the Sum square of deviation 41, 38, 39, 45, 47, 41, 44, 41, 37, 42
Sum Square Deviation = 88.5
Find the third quartile of the data set: 20,30,29,22,25,29,25,24,35,23,25,11,33,28,35
Third quartile =
= 30
Find the probability of a randomly selecting a social networking side user who is not 23 to 35 years old Ages 18-35 23-35 36-49 50-64 65 and over Freq. 156 312 254 195 58
not 23 to 35) = 0.68
For the anterior cruciate ligament (ACL) reconstructive surgery, the probability of the surgery is successful is 0.95. Find the probability that three ACL surgeries are successful
P (Three surgeries are successful) = 0.857
Your grades from last semester are in the table. The grading system assigns points as fallows: A=4, B=3, C=2, D=1, F=0. Determine your grade point average ( weighted mean) Final Grade C C D A C B Credit Hours 3 4 1 3 2 3
2.5
Find the variance of the set of data 41, 38, 39, 45, 47, 41, 44, 41, 37, 42
Variance = 8.9
Find the interquartile range of the data set 20,30,29,22,25,29,25,24,35,23,25,11,33,28,35
The interquartile = 24
The access code for the car's security system consists of four digits. Each digit can be any number from 0 through 9. How many access codes are possible when each digit can be repeated
Answer = 10,000
In the recent year, there were 18,187 US allopathic medical School seniors who applied to residency programs and submitted their residency program choices. Of these seniors, 17,057 were matched with residency position with about 79.2% getting one of their top three choices. Find the probability that a randomly selected senior was matched this with a residency position and was one of the senior's top three choices
P(A and B)= PA)xP(B|A)
0.743
find the mean of the frequency distribution Class mid-point 100 250 300 340 350 400 Frequency 3 2 5 5 4 3 xf 300 500 1500 1700 1400 1200
300
Find the Standard Deviation of the set of data 41, 38, 39, 45, 47, 41, 44, 41, 37, 42
Standard Deviation
3.0
Use the interquartile range to identify the outlier of the data set. 20,30,29,22,25,29,25,24,35,23,25,11,33,28,35
The outlier = 11
The access code for the car's security system consists of four digits. Each digit can be any number from 0 through 9. How many access codes are possible when each digit can be used only once and not repeated
Answer = 5040
In the recent year, there were 18,187 US allopathic medical School seniors who applied to residency programs and submitted their residency program choices. Of these seniors, 17,057 were matched with residency position with about 79.2% getting one of their top three choices. Find the probability that a randomly selected senior was matched this with a residency position and was one of the senior's top three choices
P(A and B)= PA)xP(B|A)
0.743