Answer:
See below
Step-by-step explanation:
The probability that x >17 will be found as follows:
the z-score is given by:
z=(17-15.2)/0.9=2
Thus
P(X>17)=1-P(x<17)=P-(z=2)
=1-0.9772
=0.0228
-13,4, - 9/2 is the answer :)
Answer:
The amount is $472.93 and the interest is $22.93.
Step-by-step explanation:
STEP 1: To find amount we use formula:
A=P(1+rn)n⋅t
A = total amount
P = principal or amount of money deposited,
r = annual interest rate
n = number of times compounded per year
t = time in years
In this example we have
P=$450 , r=2.5% , n=2 and t=2 years
After plugging the given information we have
AAAA=450(1+0.0252)2⋅2=450⋅1.01254=450⋅1.050945=472.93
STEP 2: To find interest we use formula A=P+I, since A=472.93 and P = 450 we have:
A472.93II=P+I=450+I=472.93−450=22.93
150 is the amount of interest earned for one year because the formula of PRT is, in this case 5000 times 0.03 times one which gets you the answer of 150.