Question One

1. Find the mean and median of the first five prime numbers. (5 marks)

2. If the mean of 6, 8, 9, x, 11, and 12 is 9, find the value of x. (5 marks)

3. Following are the marks obtained by 9 students in classes 55, 37, 63, 46, 38, 43, 52, 42 and 45

(i) Find the mean marks of the students. (5 marks)

(ii) What will be the mean marks if a student scoring 75 marks is also included in the class? (5 marks)

5.Determine the mean, median, and mode for the data given below (20 marks)

The weight recorded to the nearest grams of 60 apples picked out at random from a consignment are given below: 106 107 76 82 109 107 115 93 187 95 123 125 111 92 86 70 126 68 130 129 139 119 115 128 100 186 84 99 113 204 111 141 136 123 90 115 98 110 78 185 162 178 140 152 173 146 158 194 148 90 107 181 131 75 184 104 110 80 118 82