The table below shows the scores on a science test. John
75
Brett
80
Elizabeth
90
Cindy
100
Jake
75
Kenji
85
Rick
80
Joy
80
Raul
90
Suni
85

The number of standard deviations between a score and the mean score is indicated by a z-score. What was Cindy’s z-score on the science test?
a.
–2.2
c.
16
b.
100
d.
2.2

According to modern science, earth is about 4.5 billion years old and written human history extends back about 10,000 years. suppose the entire history of earth is represented with a 10-meter-long timeline, with the birth of earth on one end and today at the other end.

Me! last question, and i'm stuck! write the algebraic expression that models the word phrase. the product of 2 divided by the number h and 8 more than the number k

Apsychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. she randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. does this sampling plan result in a simple random sample? why or why not? no, because each group of 200 students in the sample does not have the same chance of being selected. yes, because each group of 200 students in the sample has the same chance of being selected. no, because each individual student does not have an equal chance of being selected. yes, because each individual student has the same chance of being selected.