Problem of the Week
Problem of the Week Grade 6 A Family Matter A family has one set of twin children, one set of triplets, and two parents. The youngest children are five years old. If the mean of the family members’ ages is 18 years, the mode is 10 years, and the parents are the same age, how old are the parents?
Recall:
Mean = Sum of all the data / Number of pieces of data Median = Middle piece of data if you arranged the numbers from smallest to largest Mode = The piece of data that occurs the most often
Strand Data Management and Probability
Problem of the Week Grade 7 A Few More Marbles Mark has a bag that contains exactly 3 black marbles, 6 gold marbles, 2 purple marbles and 6 red marbles. Mark finds a number of white marbles and adds them to the bag. He tells Sam that if she now draws a marble at random from the bag, the probability of it being black or gold is . How many white marbles did Mark add to the bag?
Strand Data Management and Probability
Recall:
Mean = Sum of all the data / Number of pieces of data Median = Middle piece of data if you arranged the numbers from smallest to largest Mode = The piece of data that occurs the most often
Strand Data Management and Probability
Problem of the Week Grade 7 A Few More Marbles Mark has a bag that contains exactly 3 black marbles, 6 gold marbles, 2 purple marbles and 6 red marbles. Mark finds a number of white marbles and adds them to the bag. He tells Sam that if she now draws a marble at random from the bag, the probability of it being black or gold is . How many white marbles did Mark add to the bag?
Strand Data Management and Probability
