A student wants to check six websites. Four of the websites are social and two are school related. After checking ju sites, she has to leave for school What is the approximate probability that she checked a social website first, then a school-related websites? 0.042
0.267
0.533
0.667
2 answers:
Total number of websites = 6 Number of school websites = 2 Number of social websites = 4 If she checks the social website first, the probability of checking a social website will be = 4/6 When one social website is checked, she is left with 3 social website and 2 school websites. So now the total number of websites is 5. The probability that the second website she checks is school related = 2/5The approximate probability that she checked a social website first, then a school-related website = 4/6 x 2/5 = 0.267 So option B gives the correct answer.
Answer:
Option b
Step-by-step explanation:
Given that there are 6 websites out of which four are social and two school related.
Total number of websites the student checked =2
Probability that she checked social website first= no of social websites/no of total websites
= 4/6= 0.667
Now available are 5 websites out of which 3 social and 2 school related
Prob for second school related =2/5 =0.40
Hence required probability = 0.667(0.40)
= 0.2668
=0.267
You might be interested in
Answer+Step-by-step explanation:
m = man's age
s = son's age
m=s+36
(m+8)=3*(s+8)
Resolves to: s=10, m=46
So the man is 46 (=10+36).
In 8 years, son is 18 (=10+8), man is 54 (=3*18 and 46+8), thank you.
Answer:
x= 70
Step-by-step explanation:
In this question you have to use BODMAS. This indicates that you have to do the equation in the brackets first. Therefore, 3x15= 45. Then you add 25, which will give you 70.
Answer:20
Step-by-step explanation:
the length of a leg on a 45-45-90 triangle given the hypotenuse is half the length of the hypotenuse times sqrt(2)
hypotenuse = 10
10/2 =5
so the answer should be 5sqrt(2), which I don't see as a choice
She is not in credit overload because her total is $2240 so she has an extra 15 dollars left from her salary