Answer:
Mean = 0.4
Stand deviation = 0.08944
Step-by-step explanation:
1.
This question tells us that the mean of trapped moths is only 0.4
Therefore the mean = E(X) = 0.4
2.
The standard deviation of the sample mean is
= σ/√n
σ = 0.6
n = 45
When we put these values into the formula we will have:
0.6/√45
= 0.6/6.708
= 0.08944
So in conclusion, the mean is 0.4 and the standard deviation is 0.08944.
Thank you!
Answer:She should plant 32 daisies.
Step-by-step explanation:4:2 can be expressed as 2:1 .
2+1 =3
48/3 = 16(value of one)
16 x 2 = 32
<span>I sugges you to go with this one: A) No; the absolute value of a negative number is equal to its opposite. As it's correct explanation.</span>
Answer:
B. 15.
Step-by-step explanation:
In order to get this answer, we just need to substitute the value of x in the formula and calculate the answer. Let's rewrite the expression with the substituions:
4((5)+5) ((5)+1) / ((5)+3) ((5)-3) = (40) (6) / (8) (2)= 240/16= 15.
Answer:
First one=120,138 Second one=477,900
Step-by-step explanation: For the first one use subtraction, and for the second one use multiplication. Such as multiplying each digit of 6,372 by 7 and by 5. The top one is pretty self explanatory.