Answer with explanation:
Given : The heights of a certain population of corn plants follow a normal distribution with mean 
and standard deviation 
a) Using formula 
, the z-value corresponds to x= 135 will be
At x= 155, 
The probability that plants are between 135 and 155 cm tall :-
Hence, 34.73% of the plants are between 135 and 155 cm tall.
b) Sample size : n= 16
Using formula 
, the z-value corresponds to x= 135 will be
At x= 155, 
The probability that plants are between 135 and 155 cm tall :-
Hence,The percentage of the samples would the sample mean height be between 135 and 155 cm.= 93.12%
Step-by-step explanation:
Get the value of y first from the first equation.. Replace the value of y on the second equation to get the value of x
No. You can't squirm out of it that easily ! Sorry.
The absolute value of a number is its size without a plus or minus.
So you don't need to be good with plus and minus to work absolute values.
The statement says "the absolute value of 'x' is less than 3".
Let's test each choice and see if it works:
a). x = -6. The absolute value of -6 is 6. Is that less than 3 ? No.
b). x = -5. The absolute value of -5 is 5. Is that less then 3 ? No.
c). x = -1. The absolute value of -1 is 1. Is that less than 3 ? Yes.
d). x = 2. The absolute value of 2 is 2. Is that less than 3 ? Yes.
Do you see ? You don't need to be Einstein or a math whiz
to answer this one.
You're just giving up because people say that girls can't do math,
and instead of telling them where to stick it, you bought into it.
The original number is $200
the way I got it is to divide 140 by .70
