Mathematics, 17.05.2021 19:00 mrhortert540
(09.06)
A teacher interested in determining the effect of a new computer program on learning to
read conducted a study. One hundred students were randomly assigned to one of two
groups. The first group used the computer program while the second group did not. Both
groups were tested to determine how much their reading levels improved. The results for the
two groups were compared. What kind of study is this? (2 points)
This is an experiment because a treatment was applied to a group.
This is an experiment because students were able to choose which group to join.
O This is a survey because students were randomly assigned to groups.
O This is a survey because a treatment was applied to both groups.
Answers: 2
Mathematics, 21.06.2019 17:30
Lems1. the following data set represents the scores on intelligence quotient(iq) examinations of 40 sixth-grade students at a particular school: 114, 122, 103, 118, 99, 105, 134, 125, 117, 106, 109, 104, 111, 127,133, 111, 117, 103, 120, 98, 100, 130, 141, 119, 128, 106, 109, 115,113, 121, 100, 130, 125, 117, 119, 113, 104, 108, 110, 102(a) present this data set in a frequency histogram.(b) which class interval contains the greatest number of data values? (c) is there a roughly equal number of data in each class interval? (d) does the histogram appear to be approximately symmetric? if so,about which interval is it approximately symmetric?
Answers: 3
Mathematics, 21.06.2019 19:00
Which statement best explains why ben uses the width hi to create the arc at j from point k
Answers: 2
Mathematics, 21.06.2019 23:00
You buy a veido game for $60 and the sales tax is 8% what is the total cost for the game including the sales tax
Answers: 1
(09.06)
A teacher interested in determining the effect of a new computer program on learning to
Biology, 17.12.2020 01:00
Spanish, 17.12.2020 01:00
Mathematics, 17.12.2020 01:00
Mathematics, 17.12.2020 01:00
Mathematics, 17.12.2020 01:00
Social Studies, 17.12.2020 01:00
Advanced Placement (AP), 17.12.2020 01:00
Health, 17.12.2020 01:00
Mathematics, 17.12.2020 01:00
Mathematics, 17.12.2020 01:00
Mathematics, 17.12.2020 01:00