Answer:
and ecg
Step-by-step explanation:
alr i got it correct on mine hope this helps
Answer: Mean = 20 and standard deviation = 4
Step-by-step explanation:
Let x represents the success of getting the correct answer.
Here, the total number of trials(n) = 100
The probability of getting the correct answer, p = 1/5
Thus, the mean of the number of correct answer,
Now, the standard deviation, 
Thus, First option is correct.
Answer:
36⁄125 or if we are talking about the lowest term it is 9
/3125
Step-by-step explanation:
Step 1: 0.288 = 288⁄1000
Step 2: Simplify 288⁄1000 = 36⁄125 Percent" or "%" means "out of 100" or "per 100",
<em>Or for the lowest term:</em>
Therefore 0.288% can be written as
0.288
100
.
Next, we can multiply by
1
in the form of
1000
1000
to eliminate the decimal in the numerator:
1000
1000
×
0.288
100
⇒
1000
×
0.288
1000
×
100
⇒
288
100000
.
We can now reduce the fraction as:
288
100000
⇒
32
×
9
32
×
3125
⇒
32
×
9
32
×
3125
⇒
9
3125
.
