Which of the following compute proportions from a

4. Which of the following compute proportions from a contingency table?
a) par()
b) prop.table()
c) anova()
d) mosaicplot()
5. Which of the following is (are) example(s) of time series problem?

1. Estimating number of hotel rooms booking in next 6 months.
2. Estimating the total sales in the next 3 years in an insurance company.
3. Estimating the number of calls received by a customer care in the next one week.
4. Estimating sales volume on the basis of advertisements, price, and location.
6. In a demand forecasting problem, the seasonal index of 0.8 for quarter 1 means