Determine whether the study described is a randomized experiment or an observational study. a wellness instructor wants to determine the effect of fitness class types on body fat composition. she measures the body fat of 100 fitness class participants before randomly assigning the participants to a class of yoga, zumba, pilates, or tae bo. she measures the body fat of each participant during the last week of classes. choose the correct answer o randomized experiment o observational study

Observational study

Step-by-step explanation:

Observational study is a research taken to get an inference or conclusion on a particular study.

A wellness instructor wants to determine the effect of fitness class types on body fat composition. the 100 participants are randomly assign to different class of yoga and there performance are noted.

the performance of the participant will be used to draw an inference on the effect of different fitness class on body weight.

15%

step-by-step explanation:

use the table and count the number of guesses that has two correct answers.

the following are two correct answers

10010, 01100, 11000

a total of 3 numbers having 2 correct guesses out of 20 questions.

probability of getting 2 correct guesses = the number of questions getting 2 correct answers / total number of questions.

= 3/20

to convert it into percent multiply by 100, we get

= 3/20 * 100

= 15%

the answer is 15%

you.

its kind of blurry. can you put a clearer pic?

step-by-step explanation: