Cognizant Cognizant Data Analysis and Interpretation

Question 1

A table shows sales data for 4 quarters: Q1=$12,000, Q2=$15,000, Q3=$18,000, Q4=$21,000. What is the average quarterly sales?

Accepted Answer

$16,500

Answer

The average is (12,000+15,000+18,000+21,000)/4 = 66,000/4 = $16,500.

Question 2

In a dataset of 10 values, if the median is 45 and the mean is 50, what does this indicate about the distribution?

Accepted Answer

It is positively skewed

Answer

When the mean exceeds the median, the distribution is positively (right) skewed, pulled up by high outliers.

Question 3

A pie chart shows Department A has 36% of employees, Department B has 24%, Department C has 28%, and Department D has the rest. If total employees = 500, how many are in Department D?

Accepted Answer

60

Answer

Department D = 100% − 36% − 24% − 28% = 12%; 12% of 500 = 60 employees.

Question 4

A bar graph shows product returns: Jan=40, Feb=55, Mar=35, Apr=70. What is the percentage increase from Mar to Apr?

Accepted Answer

100%

Answer

Percentage increase = (70−35)/35 × 100 = 35/35 × 100 = 100%.

Question 5

Which measure of central tendency is most affected by extreme outlier values in a dataset?

Accepted Answer

Mean

Answer

The mean is most sensitive to outliers because it uses every data point in its calculation.

(Cognizant) Cognizant Test Practice Test

(Cognizant) Cognizant Test Practice Test

Cognizant Cognizant Data Analysis and Interpretation