Tuesday
March 31, 2015

Homework Help: Statistics

Posted by A on Monday, February 25, 2013 at 3:30am.

Problem 6

A histogram shows the number of hours students spent preparing for a test. The table below gives the intervals and the heights of the bars (in percent per hour). Intervals contain the left endpoint but not the right. No student spent 25 hours or more in preparation.
time (hours) height
0-4 2.5
4-10 6
10-15 ?
15-25 1
: 2.0 points

What percent of students spent fewer than 4 hours in preparation?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Statistics - A large number of children were surveyed. The table below shows the...
Statistics - A large number of children were surveyed. The table below shows the...
Math - which display is best to determine the relationship between the number of...
Math - which display is best to determine the relationship between the number of...
statistics - Undergraduates in a large university class were asked to record the...
math - Which is the best display for the set of the number of tornadoes in the ...
math 1 question!!!!!! - Which is the best display for the set of the number of ...
Statistics - Compare the 95% and 99% confidence intervals for the hours of sleep...
Statistics - Compare the 95% and 99% confidence intervals for the hours of sleep...
Statistics - 1000 scientists create 95% confidence intervals for parameters of ...

Members