Answer:
D because 6/30 is not the same as 2:10
Answer:
Step-by-step explanation:
The total number of students is 350 + 50 + 225 + 375 = 1000.
There are 225 students in band only, as well as 50 students in both band and choir. So there are 275 students in band out of the total of 1000, or 27.5%.
There are 350 students in choir only, as well as 50 students in both choir and band. So there are 400 students in choir, 50 of whom are also in band. So the probability is 50/400, or 12.5%.
The probabilities are not the same.
Since the probabilities are not the same, the probability of being in band is affected by whether or not the student is in choir. So the events are not independent.
Hi there! Hopefully this helps!
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<em>1 / 2 / 3 = </em><u><em>0.16666666666. </em></u>
<u><em>0.16666666666</em></u><em> in </em><u><em>fraction form:</em></u><em> </em><u><em>1/6.</em></u>
<em>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</em>
<em>Firstly we need to </em><u><em>divide 1 into halves</em></u><em> (halves is "2", 1 / 2 = 0.5.)</em>
<em>Now that we have 0.5, we need to </em><em>divide 0.5 by 3.</em>
<u><em>0.5 / 3</em></u><em> = </em><u><em>0.16666666666</em></u>
FOR question 11 use the inverse to find the joint relative frequency. So do 98-60.
Answer:F + S = 124
Step-by-step explanation:
Also, you want the total mixture to contain 8% vinegar so: .06F + .11S = .08(310)
Now, we can solve the system of equations using substitution.
F + S = 310
.06F + .11S = .08(310)
F = 310 - S [solve 1st equation for F]
.06(310 - S) + .11S = .08(310) [substitute into 2nd equation]
18.6 -.06S +.11S = 24.8
.05S = 6.2
S = 124
