Answer:
0.4494
Step-by-step explanation:
Given :
marks number of students
20-29 8
30-39 12
40-49 20
50-59 7
60-69 3
The range Coefficient is obtained thus :
Range Coefficient = (Xm - Xl) / (Xm + Xl)
Where ;
Xm = Mid value of highest class = (60+69)/2 = 64.5
Xl = Mid value of lowest class = (20+29)/2 = 24.5
Range Coefficient = (64.5 - 24.5) / (64.5 + 24.5)
Range Coefficient = 40 / 89 = 0.4494
Answer:
h(t) = 16t changes 16 units every t. in the interval t=7 to t=2,
if its asking for:
then it's
16(2) - 16(7) = 32 - 112 = -80
<span>The weights of the fish in a certain lake are normally distributed with a mean of 18 lb and a standard deviation of 12. </span>
Answer:
Kenny will get $16 change from $100 if he buys a book of 8.
Step-by-step explanation:
Given cost of each ticket of the dinosaurs now exhibit = $10.50.
Total number of tickets = 8 tickets.
Total amount Kenny has to buy tickets = $100.
He need to buy only 8 tickets.
Total cost of 8 tickets = cost of one ticket × total number of tickets
= 10.50 × 8
= $84.
Therefore cost of all 8 tickets is $84.
Kenny would left money = 100 - 84 = $16.
<h3>Therefore, Kenny will get $16 change from $100 if he buys a book of 8.</h3>
10*350= 3500
Total amount paid- 1500+3500= 5000
So an amount of $5000 was paid to cover the cost of $4500 within the 10 month period.
So you answer is A. 33%
