Pls help pls help pls help
2 answers:
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X = 25
Explaining:
Since x-21=4
add 21 to both sides
You now have x=25
Explaining:
Since x-21=4
add 21 to both sides
You now have x=25
Answer:
The number of multiple-choice questions are 15.
Step-by-step explanation:
Mrs. Snell's math test has twenty questions and is worth 100 points.
The test consists of multiple-choice questions and short answer questions.
Let M represents the Multiple choice questions.
Let S represents the short answer question.
It is given that the total number of question are 20.
...(1)
Also, multiple-choice questions worth 3 points each, and short answer questions worth 11 points each. The total worth of the test is 100 points.
...(2)
Multiply equation (1) by 3 and subtract from equation (2).
The total number of short answers is 5.
Put S=5 in equation 1.
Hence, the number of multiple-choice questions are 15.
Answer:
See the explanation below.
Step-by-step explanation:
Assuming the distribution table given:
X ( Number od Credit Cards) Relative frequency
0 0.26
1 0.17
2 0.12
3 0.10
4 0.09
5 0.06
6 0.05
7 0.05
8 0.04
9 0.03
10 0.03
We can create the histogram for this data using the following code in R:
> x<-c(0,1,2,3,4,5,6,7,8,9,10)
> freq<-c(0.26,0.17,0.12,0.10,0.09,0.06,0.05,0.05,0.04,0.03,0.03)
> x1<-c(rep(0,26),rep(1,17), rep(2,12),rep(3,10), rep(4,9),rep(5,6),rep(6,5),rep(7,5),rep(8,4),rep(9,3),rep(10,3))
> hist(x1,breaks = x,main = "Histogram", ylab = "%", xlab = "Number of credit cards")
And we got as the result the figure attached. We see a right skewed distribution with majority of the values between 0 and 3
