Data & Normal Distributions

What does univariate data focus on?

• Two variables or two types of data

• One variable or one type of data

• Multiple variables of the same type

• The relationship between variables

Which of the following is an example of bivariate data?

• Weights of cats

• Frequency of test scores

• Weight vs. age of cats

• Test scores of students in one class

What is depicted in the bar graph under the univariate data section?

• Weight vs. age of cats

• Test scores vs. time studying

• Frequency of test scores

• Height of school children

What is depicted in the line graph under the bivariate data section?

• Frequency of test scores

• Weight vs. age of cats

• Test scores vs. time studying

• Height of school children by age, with separate lines for females and males

Which type of distribution is typically used to represent a normal distribution?

• The distribution with a single peak and symmetrical sides.

• The distribution with two peaks of different heights.

• The distribution with a uniform height across all values.

• The distribution with a peak on the left and a tail on the right.

Which distribution is most likely to represent a bimodal distribution?

• The distribution with a single peak and symmetrical sides.

• The distribution with two peaks of different heights.

• The distribution with a uniform height across all values.

• The distribution with a peak on the left and a tail on the right.

What type of distribution could represent a dataset where all outcomes are equally likely?

• The distribution with a single peak and symmetrical sides.

• The distribution with two peaks of different heights.

• The distribution with a uniform height across all values.

• The distribution with a peak on the left and a tail on the right.

Which distribution might suggest that the data is skewed to the right?

• The distribution with a single peak and symmetrical sides.

• The distribution with two peaks of different heights.

• The distribution with a uniform height across all values.

• The distribution with a peak on the left and a tail on the right.

Which type of distribution is characterized by a histogram where all bars are of equal height?

• Skewed distribution

• Normal distribution

• Bimodal distribution

• Uniform distribution

What type of distribution is represented by a histogram with two peaks of different heights?

• Uniform distribution

• Bimodal distribution

• Normal distribution

• Skewed distribution