The table shows how many males and females attended two different movies. How would you find the joint relative frequency of bei
ng male and attending a drama movie?
Action Drama Total
Male 105 124 229
Female 99 151 250
Total 204 275 479
A. Divide 124 by 275.
B. Divide 124 by 229.
C. Divide 229 by 275.
D. Divide 124 by 479.
Action Drama Total
Male 105 124 229
Female 99 151 250
Total 204 275 479
A. Divide 124 by 275.
B. Divide 124 by 229.
C. Divide 229 by 275.
D. Divide 124 by 479.
2 answers:
Answer:
B. Divide 124 by 229.
Step-by-step explanation:
Given the table
The <u>joint relative frequency</u> is the ratio of the frequency in a particular category and the total number of data values.
The total number of males
The number of males that like drama
So, to find the joint relative frequency of being male and attending a drama movie, you should divide 124 by 229.
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9514 1404 393
Answer:
a) 600
b) see below
c) 1.26 hours
Step-by-step explanation:
a) The value of y when x=0 is the coefficient of the exponential term:
y = 600·3^(-0) = 600·1 = 600
There were 600 atoms to start.
__
b) see attached for a graph
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c) The graph shows 150 atoms at t = 1.26, about 1.26 hours after the start of time counting.
If you want to find that value algebraically, substitute for y and solve for x. Logarithms are involved.
150 = 600·3^(-x)
150/600 = 3^(-x)
log(1/4) = -x·log(3)
x = -log(1/4)/log(3) = log(4)/log(3) ≈ 1.2618595
After about 1.26 hours, there were 150 atoms.
