GRADE 5 PROBABILITY AND STATISTICS (1998)

  1. Find the mean, mode, median and range of this set of daily high temperatures during the first week in May: Round the mean to the nearest tenth.
  2. 56, 58, 56, 49, 58, 62&, 58

     

     

     

    Mean __________ Mode __________ Median __________ Range __________

     

  3. I have a bag of marbles containing 3 black, 8 red and 7 green marbles. What is the probability of drawing a green marble out of this bag at random?
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  5. A club of 12 people elects a president, a vice-president, and a treasurer. If no member may hold more than one job, how many different combinations of president, vice-president, and treasurer can be elected?
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  7. The mean of 4 test scores is 83. Two of the scores are 92 and 88. If the other two tests had the same score, what is their score?
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  9. A combination lock has a combination consisting of three numbers. The dial of the lock contains the numbers 9 to 99. There are no repeated numbers in the combination. How many different combinations are possible?