50 students on the fist day and you multiply that by .20 to find how much is 20 percent of 50. You take that number which is 10 and subtract it from 50 so 50-10=40 which is how many showed up the second day
Just Math
50*0.2=10
50-10=40 students
Answer:
Greater
Step-by-step explanation:
.4*1.8 is .72
.72 is greater than .4
Answer:
The square root of 8 in radical form is represented as √8 which is also equal to 2√2 and as a fraction, it is equal to 2.828 approximately.
Answer:
i)
ii)
And replacing we got:
iii)
Step-by-step explanation:
Let X the random variable of interest "number of inhabitants of a community favour a political party', on this case we now that:
The probability mass function for the Binomial distribution is given as:
Where (nCx) means combinatory and it's given by this formula:
Part i
We want this probability:
Part ii
We want this probability:
And we can use the complement rule and we have:
And if we find the individual probabilites we got:
And replacing we got:
Part iii
We want this probability:
And replacing we got: