STATISTICS QUIZ ELIMINATION 2023

What is the mode of the following data set: 2, 4, 6, 4, 8, 2, 4, 10?

(a)  

Which of the following measures of central tendency is most affected by outliers?

• Mean

• Median

• Mode

• Range

• Variance

Which of the following tests can assess if two sets of data have equal variances?

• Tukey test

• Kolmogorov-Smirnov test

• Levene’s Test

• Z-testMann-Whitney test

What do you call the statistical measure which is the average distance of each observation from the mean?

• Median
• Mode
• Standard Deviation
• Range

Which of the following describes the distribution of a set of data if the mean is greater than the median?

• platykurtic

• leptokurtic

• Positively skewed distribution
• Negatively skewed distribution

A company produced a batch of 1000 light bulbs. A random sample of 100 bulbs found that 5 were defective. How many defective bulbs would you expect in the entire batch?

(a)  

Give the scatterplot, which of the following is most likely to be the value of r?

A) - 0.75        B) 0.25          C) 0. 60         D) - 0. 24

• -0.75

• 0.25

• 0.60

• -0.20

If a data set has a positive skewness, which of the following is most likely true?

• Mean = Median = Mode

• Mean > Median > Mode

• Mean < Median < Mode

• Mode > Median > Mean

How many permutations can be formed using the letters of the word "APPLE"?

• 120
• 60
• 30
• 20

If you roll a fair six-sided die, what is the probability of rolling a number less than 3?

Express answer in fraction. Use slash (/) for the fraction bar.

(a)