IB Bio Sem 1 Final Exam - Data Analysis

Front

What are outliers?

Back

Outliers are numbers that are far away from all other data values in the set.

Front

What is the mean assembly time for a smartphone if the distribution is approximately normal with a mean of 4.6 minutes and a standard deviation of 0.6 minute?

Back

The mean assembly time is 4.6 minutes.

Front

What percentage of assembly times falls between 4 minutes and 5 minutes in a normal distribution with a mean of 4.6 minutes and standard deviation of 0.6 minute?

Back

Approximately 59%.

Front

What is the interquartile range?

Back

The interquartile range is the difference between the upper quartile and the lower quartile.

Front

How do you find the median of a data set?

Back

To find the median, the data must be sorted from least to greatest.

Front

What is a histogram?

Back

A histogram is a graphical representation of the distribution of numerical data, showing the frequency of data points within certain ranges.

Front

Define mode in statistics.

Back

The mode is the value that appears most frequently in a data set.

Front

What does it mean to analyze data?

Back

To analyze data means to break down the data in order to bring out the essential elements or structure.

Front

What is the range of a data set?

Back

The range is the difference between the highest and lowest values in a data set.

Front

What is a normal distribution?

Back

A normal distribution is a probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean.