The Floridians can predict to hear the thunder on about 183 days out of the 730 days.
<u>Step-by-step explanation:</u>
Given that,
- The total number of days = 730 days.
- The probability of hearing thunder on any day in Florida = 25%
Let 'x' be the number of days out of 730 days that Floridians will hear thunder.
<u>To find the number of days that Floridians will hear thunder :</u>
Number of days will hear thunder = 25% of Total days
The 25% can be expressed in the form of 25/100.
Therefore, the x days that Floridians will hear thunder is given as,
⇒ x = (25/100) × 730
Further simplifying the above equation,
⇒ x = 2.5 × 73
⇒ x = 182.5
Since the number next to the decimal point is equal to 5, round it to the nearest integer.
Therefore, the value of x is approximately equal to 183 days.
Thus the Floridians can predict to hear the thunder on about 183 days out of the 730 days.
Answer:
a) 0.0082
b) 0.9987
c) 0.9192
d) 0.5000
e) 1
Step-by-step explanation:
The question is concerned with the mean of a sample.
From the central limit theorem we have the formula:

a) 
The area to the left of z=2.40 is 0.9918
The area to the right of z=2.40 is 1-0.9918=0.0082

b) 
The area to the left of z=3.00 is 0.9987

c) The z-value of 1200 is 0
The area to the left of 0 is 0.5

The area to the left of z=1.40 is 0.9192
The probability that the sample mean is between 1200 and 1214 is

d) From c) the probability that the sample mean will be greater than 1200 is 1-0.5000=0.5000
e) 
The area to the left of z=-112.65 is 0.
The area to the right of z=-112.65 is 1-0=1
(-1,-1)(-3,-3)
slope = (-3 - (-1) / (-3 - (-1) = (-3 + 1) / (-3 + 1) = -2/-2 = 1