EDA

Question 1

To compute probabilities with large values of ‘n,’ relying on the binomial formula can become
quite intricate. Employing the ___ simplifies this procedure significantly.

Answer 1

Normal Approximation to Binomial

Question 2

This theorem states that if a population of more with sufficiently large random samples from
the population is taken, then the distribution of the sample means will be approximately normally
distributed.

Answer 2

Central Limit Theorem

Question 3

The set of all possible outcomes or results of a random experiment.

Answer 3

Sample Space

Question 4

Suppose the researcher has computed a Z (Standard Normal Distribution of 1.2 what is the
equivalent Z coefficient?

Answer 4

0.8849

Question 5

A range of possible values for the next single observation that is most likely as judged by
the history of previous observations.

Answer 5

Prediction Interval

Question 6

The likelihood of a population parameter falling within a specified range for a certain proportion
of occurrences.

Answer 6

Conditional Probability

Question 7

A continuous random variable X, exhibiting a bell-shaped distribution, is referred to as ___.

Answer 7

Normal Random Variable

Question 8

Tests population parameter against a hypothesized value, assuming normal distribution,
unknown variance, and a sample size of less than thirty.

Answer 8

T Test

Question 9

The likelihood of an event occurring.

Answer 9

probability

Question 10

What method must be employed to solve this problem: A coin is tossed 400 times. Use the
approximation to find the probability of obtaining between 185 and 210 heads inclusive.

Answer 10

Normal Approximation to Binomial

Question 11

Within the ecological microcosm of an island, am avian species
exhibits intriguing nesting behaviours. Analyze the sampling
distribution pattern for the number of eggs laid per nest. Choose
the statement that most accurately depicts the observation.

Answer 11

The sampling distribution has a high bias, low variability

Question 12

Based on historical data, the time required to grade a single student paper is positively skewed,
with an average grading time of 6 minutes and a standard deviation of 7 minutes. In the current
term, with a class of 49 students, the instructor has allocated an average of 8 minutes per student
paper for grading. What method must be used to solve this problem?

Answer 12

Central Limit Theorem

Question 13

It evaluates the over or underestimation of the value of the population parameter.

Answer 13

Statistical Bias

Question 14

The Probability that a patient recovers from a rare blood disease is 10%. If 100 people are
known to have contracted this disease, what is the parameter that is responsible for the spread of
the said distribution?

Answer 14

Standard Deviation

Question 15

An experiment often consist of repeated trials, each with two possible outcomes that may be
labelled success and failure.

Answer 15

Binomial Distribution

Question 16

A type of mistake where the null hypothesis is rejected when it is true.

Answer 16

Type I

Question 17

It predicts that in normal distributions, 68% of observations fall within the first standard
deviation (μ ± σ), 95% within the first two standard deviations (μ ± 2σ), and 99.7% within the first
three standard deviations (μ ± 3σ) of the mean.

Answer 17

Empirical Rule

Question 18

Represents the distinct characteristic or trait that researchers measure, regulate, or modify in
their studies.

Answer 18

variable

Question 19

Assesses if a sample represents the population’s true proportion regarding a hypothesized value.

Answer 19

Test on Population Proportion

Question 20

____is one that has a finite (or countably finite) number of random variables that have an
equally likely chance of occurring.

Answer 20

Discrete Probability Distribution