mathxl.com Homework: Assignment 3 Score: 0 of 3 pts X3.1.10 Save 3 of 6 (1 compl

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mathxl.com Homework: Assignment 3 Score: 0 of 3 pts X3.1.10 Save 3 of 6 (1 complete) HW Score: 0%, 0 of 19 pts Question Help * Find the (a) mean, (b) median, (c) mode, and (d) midrange for the given sample data. An experiment was conducted to determine whether a deficiency of carbon dioxide in the soil affects the phenotype of peas. Listed below are the phenotype codes where 1 = smooth-yellow, 2 = smooth-green, 3 = wrinkled-yellow, and 4 = wrinkled-green. Do the results make sense? (a) The mean phenotype code is 2.9 (Round to the nearest tenth as needed.) (b) The median phenotype code is Type an integer or a decimal.)

Explanation / Answer

a)Mean= 2 + 3 + 3 + 1 + 3 + + 4 = 41=14

Number of terms = 14

Mean =Sum of terms/Number of terms=41/14 2.9286

b) The median is the middle number in a sorted list of numbers. So, to find the median, we need to place the numbers in value order and find the middle number.

Ordering the data from least to greatest, we get:

1   1   1   2   3   3   3   3   4   4   4   4   4   4   

As you can see, we do not have just one middle number but we have a pair of middle numbers, so the median is the average of these two numbers:

Median=3+3/2=3

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