On sixth of February, Sudhir tells his aunt , “I went for a picnic with my classmates exactly 15 days ago.” When was his picnic?

a) 22nd January b) 28th February c) 21stJanuary d) 21stFebruary

Standard deviation of 19,29,21,22,23

Given the following linear function sketch the graph of the function and find the domain and range. ƒ(x) = -5x + 4

According to a study conducted in 2015, 18% of shoppers said that they prefer to buy generic instead of name-brand products. suppose that in a recent sample of 1500 shoppers, 315 stated that they prefer to buy generic instead of name-brand products. at a 5% significance level, can you conclude that the proportion of all shoppers who currently prefer to buy generic instead of name-brand products is higher than .18? use both the p-value and the critical-value approaches.