Question

Use table to answer the question.

Plant Types A B C D E
Number of Seedlings 100 140 80 60 40

A former conducted an inventory on his two square kilometers of rainforest; the results are in the table. He plans on randomly selecting a seedling to experiment on when he goes back to the forest. What is the probability that he will randomly pick a type B plant? Write your answer in the simplest form of a fraction.

Answer 1

Company X tested its light bulbs to see how long they would last. On a production line 2,500 bulbs were taken and tested. The department in charge reported that out of 2,500 bulbs, there were 2,200 bulbs that burnt out after more than 1,500 hours of use. Lucy purchased a light bulb from Company X. What is the likelihood that it will burn for more than 1,500 hours? Write your answer in decimal form.

Answer 2

The letter tiles C, A, R, E, and S are placed in a box. Without looking, Jorelle picks a letter tile from the box and records are the result before placing it back. He repeats the procedure 100 times and observes the following results:

Outcomes C A R E S
Frequency 20 25 30 10 15

Based on the observed frequency, what is the probability that Jorelle will pick a letter R? The answer should be in percent form.

Answer 3

Use table to answer the question.

Outcomes 2 4 6 8 10 12
Frequency 10 9 6 15 13 8

Jede tossed a cube with faces numbered with 2, 4, 6, 8, 10,and 12. The results are recorded in the table. What is the largest discrepancy between the experimental and expected probability of this experiment? The answer needs to be in percent from the nearest whole number.

Answer 4

incorrect

Answer 5

Use table to answer the question.
Outcomes 2 4 6 8 10 12
Frequency 10 9 6 15 13 8

Jede tossed a cube with faces numbered with 2, 4, 6, 8, 10,and 12. The results are recorded in the table. What is the largest discrepancy between the experimental and expected probability of this experiment? The answer needs to be in percent from the nearest whole number.