Data and Statistics

What is the formula to calculate the mean of a set of numbers?

• Mean = (Sum of all numbers) + (Total count of numbers)

• Mean = (Sum of all numbers) / (Total count of numbers)

• Mean = (Sum of all numbers) * (Total count of numbers)

• Mean = (Sum of all numbers) - (Total count of numbers)

Tags

CCSS.6.SP.B.5C

Define the term 'median' in statistics.

• The median is the highest value in a dataset.

• The median is the sum of all values in a dataset divided by the number of values.

• The median is the value that occurs most frequently in a dataset.

• The median is the middle value of a dataset when it is ordered from least to greatest. If there is an even number of values, the median is the average of the two middle values.

Tags

CCSS.6.SP.B.5C

Explain the purpose of using histograms in data analysis.

• Histograms provide detailed information about individual data points

• Histograms are used to create pie charts for data visualization

• Histograms help in predicting future trends in the data

• Histograms help in understanding the shape, center, and spread of the data, identifying outliers, and making data-driven decisions.

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

How can you ensure a sample collected for a survey is representative of the population?

• Purposive sampling and systematic sampling

• Convenience sampling and snowball sampling

• Random sampling and stratified sampling

• Cluster sampling and quota sampling

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Calculate the mean of the following set of numbers: 10, 15, 20, 25, 30

• 28

• 18

• 22

• 20

Tags

CCSS.6.SP.B.5C

In a dataset with 10 values, what is the position of the median value?

• 10

• 7

• 5

• 3

Tags

CCSS.6.SP.B.5C

What type of data is best represented using a histogram?

• Discrete data

• Categorical data

• Nominal data

• Continuous data

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

What are the different methods of data collection?

• Surveys, Interviews, Observations, Experiments, Existing data analysis

• Brainstorming, Role-playing, Simulation

• Online quizzes, Phone calls, Social media analysis

• Focus groups, Case studies, Literature review

If the mean and median of a dataset are equal, what can you infer about the data distribution?

• The data distribution is skewed to the left.

• The data distribution is bimodal.

• The data distribution is skewed to the right.

• The data distribution is symmetric.

Tags

CCSS.6.SP.B.5D

CCSS.HSS.ID.A.2

Explain the concept of stratified sampling in data collection.

• Stratified sampling involves selecting samples randomly from the entire population without any division

• Stratified sampling involves selecting samples based on non-random criteria

• Stratified sampling requires selecting samples only from one specific subgroup of the population

• Stratified sampling is the process of dividing the population into subgroups or strata based on specific characteristics, then randomly selecting samples from each stratum to ensure representation from all subgroups.

Tags

CCSS.HSS.IC.B.3