To find the percent of the rolls rejected, divide the number of rolls rejected by the number of rolls manufactured, then multiply by 100 and add the % symbol:
\(\displaystyle{\left(\frac{{121}}{{3645}}\right)}\cdot{100}\sim{3}\%\)

Question

asked 2021-05-25

The reduced row echelon form of the augmented matrix of a system of linear equations is given. Determine whether this system of linear equations is consistent and, if so, find its general solution.

\(\begin{bmatrix}1 & -4&5 \\0 & 0&0 \\0 & 0&0 \\ \end{bmatrix}\)

asked 2021-05-03

During a given week, the museum had attendance as shown in the table at right. a. Numerically summarize the center and spread of attendance by finding the median and interquartile range (IQR). b. The museum management needs to tell the staff members their work schedules a week in advance. The museum wants to have approximately one staff member for every 150 visitors. How many staff members should be scheduled to workeach week? Explain your reasoning. c. Why is a scatterplot not an appropriate display of this data?
Day Attendance
1 amp;870
2 amp;940
3 amp;731
4 amp;400
5 amp;861
6 amp;680
7 amp;593

asked 2021-05-31

Ten red cards and ten black cards are placed in a bag. You choose one card and then another without replacing the first card. What is the probability that the first card will be red and the second card will be black?

asked 2021-05-19

The probability of a baby being born a boy is 0.512. Consider the problem of finding the probability of exactly 7 boys in 11 births. Solve that problem using normal approximation to the binomial.