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Rajani K

Numerade Educator

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Numerade tutor for 4 years
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Rajani's Quick Ask Videos

02:43
Intro Stats / AP Statistics

Suppose that you have two sets of data to work with. The first
set is a list of all the injuries that were seen in a clinic in a
month's time. The second set contains data on the number of minutes
that each patient spent in the waiting room of a doctor's office.
You can make assumptions about other information or variables that
are included in each data set.
For each data set, propose your idea of how best to represent
the key information. To organize your data would you choose to use
a frequency table, a cumulative frequency table, or a relative
frequency table? Why?

04:49
Chemistry 101

A biochemist wanted to adjust the pH of a 266ml solution of a buffer solution composed of 0.553M CH2BrCOOH and 0.304M KOOCCH2Br (Ka=1.26e^-3) by adding 0.014 moles of HBr.

02:34
Intro Stats / AP Statistics

Assume running consumes 150 Calories per mile. If you run
6-minute miles, what is your average power output, in watts, during
a 1-hour run

03:44
Intro Stats / AP Statistics

By observing a set of data values, Thomas used a calculator for the weight (in pounds) and predicted the number of calories burned per minute to get an equation for the least-squares line: Å· = 2.2 + 0.05x. Based on the information gathered by Thomas, select the statement that is TRUE.
a.) A person weighing 125 pounds can burn 8.3 calories per minute.
b.) A person weighing 149 pounds can burn 9.8 calories per minute.
c.) A person weighing 134 pounds can burn 8.9 calories per minute.
d.) A person weighing 173 pounds can burn 10.7 calories per minute.

04:26
Calculus 1 / AB

The graph of f is shown in the figure. The shaded region A has an area of 1.5, and ∫[0 to 6] f(x) dx = 3.5. Use this information to fill in the blanks. (Round your answer for part (f) to four decimal places.)

(a) ∫[0 to 2] f(x) dx =
(b) ∫[2 to 6] f(x) dx =
(c) ∫[0 to 6] |f(x)| dx =
(d) ∫[0 to 2] -2f(x) dx =
(e) ∫[0 to 6] [4 + f(x)] dx =
(f) The average value of f over the interval [0, 6] is .

04:34
Intro Stats / AP Statistics

Carbonite' Cruz and 'Flash Frost' Frontenac have completed a psychological test of aggressiveness in which a higher score indicates greater aggressiveness. Carbonite had a score of 45 and Flash Frost had a score of 90. Flash Frost's promoter brags, 'This proves Flash is twice as aggressive as that pussycat Carbonite.' You think to yourself, 'Well, no, because a construct like aggressiveness can only be measured on a nominal scale and his claim requires measurement on a ratio scale.

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