A Jar Contains Four White Marbles, Five Red Marbles, and Six

question 51

True/False

A jar contains four white marbles, five red marbles, and six black marbles. If a marble were selected at random, the probability that it is white or black would be $\frac { 2 } { 3 }$ .

---

Definitions:

Two-tail

Pertains to hypothesis tests that consider extreme outcomes in both tails of the distribution, allowing for tests of deviation in two opposite directions.

7-point Scale

A survey response scale that offers seven possible answers, often used to measure opinion or intensity.

Significance Level

The probability threshold below which the null hypothesis is rejected in hypothesis testing, often denoted as alpha.

Taste Ratings

Evaluation scores given to food or drink items based on their flavor profiles and sensory appeal.