Experience with the Finite Mathematics course at a certain college suggests that of those students who get a grade of C or better on exam I, 90% get a C or better on exam II. Of those who get D or F on exam I, 70% get a D or F on exam II. This year 80% got C or better on exam I. Find the proportion of Finite Mathematics students who are likely to get D or F on exam II.

The proportion of Finite Mathematics students who are likely to get D or F on exam II is 0.22 = 22%.

Step-by-step explanation:

We have these following proportions:

80% got C or better on exam I. Of those, 90% are likely to get a C or better on exam II. So 100-90 = 10% are likely to get D or F.

20% got D or F on exam II. Of those, 70% get a D or F on exam II.

Find the proportion of Finite Mathematics students who are likely to get D or F on exam II.

10% of 80% plus 70% of 20%. So

0.1*0.8 + 0.7*0.2 = 0.22

The proportion of Finite Mathematics students who are likely to get D or F on exam II is 0.22 = 22%.

from the figure we get,

the x axis shows   the months and,

the y-axis shows the number of satisfied customer.

each line or each cell in upward direction (y-axis) shows 500.

the appropriate scale for the y - axis is: -

a = 2000 customers

b = 4000 customers

c = 6000 customers

d = 8000 customers

e = 10000 customers

f = 12000 customers

g = 14000 customers

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