tell whether each expression is a numerical expression or a variable expression. for a variable expression name the variable. 25
1 answer:
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Answer:
Explanation has been given below
Step-by-step explanation:
hope fully it may concern with 70% adults then
p = 0.77
randomly select = 6
then mean will be
mean = n * p = 6*0.77=4.62
To get variance np (1-p)
then putting values we get
np (1-p) = 4.62 *0.23 = 1.0626
taking square root we get
sd = 1.03
Most samples of 6 adults would differ from the mean by no more than 1 sd
mean is differ by no more than 2 sds .
In a real-life situation, it is expected that 4 or 5 of 6 to think it is a problem.
I would not expect 0, 1, or 2.
Answer:
460% of free time is spent on internet and games .
Step-by-step explanation:
Given as :
The time spent by Gary on internet = 10 hours per week
The time spent by Gary on video games = 13 hours per week
So, Total time spent by Gary = 10 hours per week + 13 hours per week
= 23 hours per week
The free time which Gary have = 5 hours
Now, percentage of free time spent on internet and games = x %
So, x % of 5 = 23
or, x % =
∴ x% = 4.6
I.e x = 460 %
Hence 460% of free time is spent on internet and games . Answer