MEASURES OF CENTRAL TENDENCY
MEASURES OF VARIATION
MEASURES OF POSITION
PROBABILITY
conditional probability and the multiplication rule
100

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

100

Find the range of the set of data                             41, 38,  39,  45, 47,  41,   44,  41,  37,  42

Range = 10

100

Find the first quartile of the data set: 20,30,29,22,25,29,25,24,35,23,25,11,33,28,35

 = 23

100

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

100

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

200

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

200

Find the mean                                                       41, 38,  39,  45, 47,  41,   44,  41,  37,  42

Mean = 41.5

200

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

200

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

200

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

300

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

300

Find the Sum square of deviation                            41, 38,  39,  45, 47,  41,   44,  41,  37,  42 

Sum Square Deviation = 88.5

300

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

300

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

300

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

400

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

400

Find the variance of the set of data                             41, 38,  39,  45, 47,  41,   44,  41,  37,  42

Variance = 8.9

400

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

400

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

400

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

500

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

500

Find the Standard Deviation of the set of data          41, 38,  39,  45, 47,  41,   44,  41,  37,  42

Standard Deviation     3.0

500

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

500

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

500

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

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