Explain please

... 2 / 2 100% + (3 pts] 2. The quality control specialist for Shoreline's Central Market grocery store is investigating all of his store's sales receipts from January 2021. Each receipt contains information besides the total purchase amount, such as the cashier's name and payment type (debit, cash, check, charge, food stamps). The quality control specialist creates the quantitative variable x to represent the total amount of the sale on a receipt (in dollars) and he creates the categorical variable y to represent payment type. This grocery store's January 2021 shows that the distribution of the total sale amounts is positively skewed (ie. skewed right). Suppose the standard deviation of the thousands of January 2021 receipts' safe amounts is o =6, = $27. Suppose the proportion of all January 2021 receipts showing debit only as the payment method is p =61%. In your OWN words, using complete English sentences, carefully answer each of the questions posed in parts (a) -(c) below. Be careful to avoid writing incomplete and/or vague descriptions. For example, "s measures the spread" is too vague; you should be more specific and state what s measures the spread of as it relates to this specific setting (Central Market's January 2021 sales receipts). Be specific. Suppose a random selection of n =100 of this store's January 2021 sales receipts has mean x = $52.5 and standard deviation s =$9.0. Furthermore, 46 of these 100 receipts indicate that the customer only used their debit card to pay their bill. [Ipt] (a) What does s =$9.0 mean? (s is measuring the spread amongst which numbers? in what distribution?) [Ipt] (b) What is the value of of = (x)= SD(x) here? What does it mean? (, is measuring the spread amongst which numbers? in what distribution?) [Ipt (c) What is the value of of = (p) = SD(p) here? What does it mean? (, is measuring the spread amongst which numbers? in what distribution?)