Which one of the following statements is not true regarding the characteristics of the Student’s t-distribution?

A random sample of computer users were asked which browser they primarily relied on for surfing the Internet and whether this browser was installed on a desktop or laptop computer. The following contingency table shows these results.BrowserDesktopLaptopInternet Explorer1856Firefox737Chrome2477Safari318Other37The probability that a randomly selected person from this sample used the Chrome browser and used a laptop computer is ________.

The following data represents the actual talk time, in hours, for the Droid Razr smartphone for 11 users.25.119.121.69.520.318.024.625.221.929.728.5The 60th percentile of this data set is ________.

The following data set represents the age of a random sample of cars on the road today.13371012The variance of this sample is ________.

The daily high temperature in Philadelphia over an eight-day period is shown below.6977708184866970The median for this data set is ________.

The probability of winning a 5/25 lottery game where 5 numbers are picked from a range of 25 is ________.

There are 30 Major League Baseball teams in the National League. Five of these teams will make the playoffs at the end of the season. The number of unique groups of teams that can make the playoffs is ________.

The following distribution shows the frequency of daily revenue for an Italian restaurant in Wilmington, Delaware.RevenueFrequencyUnder $2,00018$2,000 to under $4,00010$4,000 to under $6,00026$6,000 to under $8,00014$8,000 to under $10,0008Over $10,0004What is the probability that a randomly selected day will generate under $2,000 in revenue?

The following contingency table shows the number of customers who bought various brands of digital cameras at Walmart and Best Buy.Camera BrandBest BuyWalmartCanon2132Nikon837Olympus1630Sony512Other4940The probability that a randomly selected customer from this sample bought an Olympus camera and purchased the camera at Best Buy is ________.

Costco sells a matching set of T-shirts and shorts. The T-shirt comes in four colors and six sizes. The shorts come in three colors and five sizes. The number of unique color and size combinations of T-shirts and shorts is ________.