Answer:
0.62
Step-by-step explanation:
In the picture attached, the table is shown.
We want to find the probability that a student uses the Internet, given that he or she is in eighth grade. Mathematically:
P(Internet | eighth grade) = P(Internet ∩ eighth grade)/P(eighth grade)
P(Internet | eighth grade) = (8/28)/(13/28) = 8/13 = 0.62
Answer:
27
Step-by-step explanation:
Let the number to find out be 'x'
Therefore,
according to the condition given question, we get the equation as
Now,
squaring both the sides, we get
2x - 5 = 49
on adding 5 both sides, we get
2x - 5 + 5 = 49 + 5
or
2x = 54
or
x =
or
x = 27
Hence, the number is 27