Answer:
0.2027 is the probability that exactly 3 out of 9 adults use their smartphones in meetings or classes.
Step-by-step explanation:
We are given the following information:
We treat adult using smartphones in meetings or classes as a success.
P(Adult using smartphone) = 46% = 0.46
Then the number of adults follows a binomial distribution, where
where n is the total number of observations, x is the number of success, p is the probability of success.
Now, we are given n = 9
We have to evaluate:
0.2027 is the probability that exactly 3 out of 9 adults use their smartphones in meetings or classes.
Answer:
2 1/6
Step-by-step explanation:
Find LCM of 3 & 2: 6
4/6 + 9/6
4+9 / 6
= 13/6
= 2 1/6
Answer:
1/4 page per minute
Step-by-step explanation:
To find the unit rate, we need the amount of page she read in 1 minutes. To do this we divide the pages by the minutes. Let x equal the pages she reads per minutes.
5/20=x
we can simplify the fraction by divide both the numerator and denominator by 5
(5/5)/(20/5)=x
Do the division
1/4=x
Olive reads 1/4 page per minute