Answer:
C.) In perfect health.
Step-by-step explanation:
Given an average weight of 15kg and a standard deviation of 3kg for children of 4 years. Since the weight is based on a normal Z - distribution of 95% which is mean ± 2(standard deviations)
Mean weight interval is :
15 - 2(3) ; 15 + 2(3)
(9 ; 21) ; this weight interval could be interpreted to mean the normal or perfect weight value.
Therefore, given that the child weighs 12kg
Since, 12 kg falls within in the interval, we can conclude that the child is in perfect health.
The interval notation for numbers greater than 2 but less than or equal to 20 is (2,20]
Answer:
The answer to the mean is 66.4
Step-by-step explanation:
58+63+68+72+71
Answer:
111,739 square feet
Step-by-step explanation:
Two adjacent sides of the park say x and y are,
x=533feet
y=525feet
A=53º
area=1/2*b*c*sin(A)
111739 feet^2
(a) The first answer is “A” because 480 / 8 is = 60
(b) a the answer is also “A” because 502 / 8 = 62.5, so it is a underestimate
