Answer: 478
Step-by-step explanation:
The formula to calculate the standard error of the population mean is given by :-
, where 
is the standard deviation and 'n' is the sample size.
Given: Mean : 
Standard deviation : 
Sample size : 
Now, the value of the standard error of the average annual salary is given by :-
Hence, the standard error of the average annual salary = 478
In this question weight of a flea and an ant is given, but their units are different. So comparing and finding out the weight of flea and ant would be difficult. First thing that needs to be done is to bring the units of both the flea and the ant under same unit.
Weight of flea = 8 decigrams
Weight of ant = 3 milligrams.
Now let us convert the weight of the flea from decigrams to milligrams.
We already know that
1 decigram = 100 milligram
Then
8 decigrams = 100 * 8 milligrams
= 800 milligrams
Then
The weight by which the flea is greater than the ant = (800 - 3) milligrams
= 797 milligrams.
So the flea weighs 797 milligrams more than the ant.
Answer:
22cm
Step-by-step explanation:
440÷20
d i believe so it might be d if not i’m sorry
