Your friend has a z-table, and you don't. You ask your friend to look up the area in a tail on the left hand side of the normal
1 answer:
Answer:
d. 0.4013
Step-by-step explanation:
Half of the area under the normal curve is found to the left of the midpoint, where z=0. For negative values of z, the area under the curve is less than half.
Area under a normal curve is always a positive value between 0 and 1, so will never be negative.
The only value that can be an area in a left-hand tail is 0.4013.
_____
<em>Additional comment</em>
That value corresponds to z ≈ -0.25.
You might be interested in
Answer:
It is clear that, The Shelly account is $11.23 more than that in Anne account .
Step-by-step explanation:
Given as :
For Anne
The amount deposited in account = p = $500
The rate of interest = r = 6% at simple interest
The time period of deposit = t = 4 years
Let The amount received in account after 4 years = $
<u>From Simple Interest method</u>
Simple Interest =
Or, s.i =
Or, s.i =
Or, s.i =
i.e s.i = $120
∵ Amount = Principal + Interest
Or, = p + s.i
Or = $500 + $120
Or, Amount = $620
So, The Amount in Anne account after 4 years is $620
Again
For, Shelly
The amount deposited in account = P = $500
The rate of interest = R = 6% compounded annually
The time period of deposit = T = 4 years
Let The amount received in account after 4 years = $
<u>From Compound Interest method</u>
Amount = Principal ×
Or, = P ×
Or, = $500 ×
Or, = $500 ×
Or, = $500 × 1.26247
Or, = $631.23
So, The amount received by Shelly in her account after 4 years = $631.23
Now, Difference between amount received in their account
i.e -
= $631.23 - $620
Or, -
= $11.23
Hence, It is clear that, The Shelly account is $11.23 more than that in Anne account . Answer