CK-12-Basic Probability and Statistics Concepts - A Full Course

(Marvins-Underground-K-12) #1

5.4. Median http://www.ck12.org


a. 1
b. 11
c. 23
d. 12


  1. What is the median mark achieved by a student who recorded the following marks on 10 math quizzes?


68 , 55 , 70 , 62 , 71 , 58 , 81 , 82 , 63 , 79

a. 68
b. 71
c. 69
d. 79


  1. A set of 4 numbers that begins with the number 32 is arranged from smallest to largest. If the median is 35,
    which of these could possibly be the set of numbers?
    a. 32, 34, 36, 38
    b. 32, 35, 38, 41
    c. 32, 33, 34, 35
    d. 32, 36, 40, 44

  2. The number of chocolate bars sold by each of 30 students is as follows:


32 , 6 , 21 , 10 , 8 , 11 , 12 , 36 , 17 , 16 , 15 , 18 , 40 , 24 , 21 , 23 , 24 , 24 , 29 , 16 , 32 , 31 , 10 , 30 , 35 , 32 , 18 , 39 , 12 , 20

What is the median number of chocolate bars sold by the 30 students?
a. 18
b. 21
c. 24
d. 32


  1. The following table lists the retail price and the dealer’s costs for 10 cars at a local car lot this past year:Deals
    on Wheels


TABLE5.19:


Car Model Retail Price Dealer’s Cost
Nissan Sentra $24,500 $18,750
Ford Fusion $26,450 $21,300
Hyundai Elantra $22,660 $19,900
Chevrolet Malibu $25,200 $22,100
Pontiac Sunfire $16,725 $14,225
Mazda 5 $27,600 $22,150
Toyota Corolla $14,280 $13,000
Honda Accord $28,500 $25,370
Volkswagen Jetta $29,700 $27,350
Subaru Outback $32,450 $28,775

(a) Calculate the median for the data on the retail prices for the above cars.


(b) Calculate the median for the data on the dealer’s costs for the above cars.



  1. Due to high winds, a small island in the Atlantic suffers frequent power outages. The following numbers

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