In Your Mathematics Class, There Are 28 Students Who Attended

question 38

Short Answer

In your mathematics class, there are 28 students who attended class on the first day of the semester. 19 of the students brought a calculator to class that first day. If a student is randomly selected, what is the probability that student did not bring a calculator the first day?

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Definitions:

Confidence Interval

A stretch of values, resulting from sample analytics, projected to envelop the value of a hidden attribute in a population.

Population Proportion

The ratio of members within a subset to the total number of members in a population.

Stratified Random Sampling

A method of sampling that involves dividing a population into smaller groups, known as strata, that share similar characteristics, and then randomly selecting members from each stratum for study.

Chi-Square Distribution

A statistical distribution used in hypothesis testing that is applicable to variables measured on an interval scale, often used to analyze categorical data.