Step 1: Add all the numbers together. Sum = 4 + 7 + 9 + 12 + 8 = 40 Step 2: Count how many numbers there are. There are 5 numbers. Step 3: Divide the sum by the count. Mean = 40 ÷ 5 = 8 Therefore, the mean is 8.Step 1: Arrange the numbers in ascending order. 1, 3, 4, 6, 8 Step 2: Find the middle number. There are 5 numbers, so the middle position is the 3rd number. The median is 4.Step 1: Count how many times each number appears. 3 appears 3 times 5 appears 1 time 7 appears 1 time 8 appears 1 time 9 appears 1 time Step 2: Identify the number that appears most frequently. The mode is 3 (it appears most often).Step 1: Add all the numbers. Sum = 15 + 20 + 25 + 30 + 35 = 125 Step 2: Count the numbers. There are 5 numbers. Step 3: Calculate the mean. Mean = 125 ÷ 5 = 25 Therefore, the mean is 25.Step 1: Arrange the numbers in ascending order. 3, 5, 7, 8, 9, 12 Step 2: Find the middle value(s). There are 6 numbers (even count), so the median is the average of the 3rd and 4th numbers. Middle numbers are 7 and 8. Step 3: Calculate the median. Median = (7 + 8) ÷ 2 = 15 ÷ 2 = 7.5 Therefore, the median is 7.5.Step 1: Count how many times each number appears. 2 appears 1 time 4 appears 2 times 6 appears 2 times 8 appears 1 time 10 appears 1 time Step 2: Identify the most frequent number(s). Both 4 and 6 appear twice (the most). This data set is bimodal. The modes are 4 and 6.Finding the Mean: Sum = 5 + 8 + 8 + 10 + 14 = 45 Mean = 45 ÷ 5 = 9 Finding the Median: Data in order: 5, 8, 8, 10, 14 Middle value (3rd number) = 8 Median = 8 Finding the Mode: 8 appears twice, all others appear once. Mode = 8 Therefore: Mean = 9, Median = 8, Mode = 8.
