Answer
a) y | p(y)
25 | 0.8
100 | 0.15
300 | 0.05
E(y) = ∑ y . p(y)
E(y) = 25 × 0.8 + 100 × 0.15 + 300 × 0.05
E(y) = 50
average class size equal to E(y) = 50
b) y | p(y)
25 | 
100 | 
300 | 
E(y) = ∑ y . p(y)
E(y) = 25 × 0.4 + 100 × 0.3 + 300 × 0.3
E(y) = 130
average class size equal to E(y) = 130
c) Average Student in the class in a school = 50
Average student at the school has student = 130
Answer:
No, It is not irrational number.
Step-by-step explanation:
2/5 is a rational number. A rational number is a number of the form q/q where p and q are integers and q is not equal to 0.
Answer:
Result: $26.46
Steps:
$24.50 (increase) + 8% = $26.46
24.50 x (1 + 8%) = 24.50 x (1 + 0.08) = 26.46
I'm truly sorry if my math is incorrect.
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Subtract the 17190 from the 21840. you get 4650. 4650 divided by 21840 is 0.21. The percent decrease is 21%
Answer:
16875.98
Step-by-step explanation:
6000(1+(0.09/1)^1*12 = 16875.98
