Answer:
1-5=-4, then absolute value so the <u>answer is equal to 4</u>
Answer:
4.53
Step-by-step explanation:
Given the data :
4, 5, 10, 11, 15
The mean = 9
The standard deviation of a sample :
s = √[Σ(x - mean)²/(n-1)]
s = √[((4-9)² + (5-9)²+(10-9)² + (11-9)² + (15-9)²) / (5-1)]
s = √(25+16+1+4+36)/4
s = √20.5
s = 4.527
s = 4.53
Though I don't know #24, I know #25.
Take 15% of 31.77 and you should get 4.7655.
Now add 31.77 with 4.7655 and you should get 36.5355.
Round 36.5355 to the nearest hundredth.
Your final answer is $36.54
Answer:
he could buy 5 cookies and 7 brownies
Step-by-step explanation:
8.75 for the brownies and it is 3.75 for the cookies = 12.50
7*1.25=8.75 5*0.75= 3.75 equals 12.50 all together
he can't buy more than 12 cookies and brownies all together.
Answer:
Step-by-step explanation:
Let X be the no of adults whose feelings the state of morals is poor.
X has two outcomes and each trial is independent of the other
X is Bin with p = probability for success in each trial =40%=0.40
n=no of adults surveyed = 55
a) The probability that exactly 21 of those surveyed feel the state of morals is poor is
(b) The probability that no more than 22 of those surveyed feel that state of morals is poor is
=
(c) The probability that more than22 of those surveyed feel the state of morals is poor is
(d) The probability that 15 or 16 believe the state of morals is poor is
=
