Xylem Park hosts many expos to teach the public about plants. Last year's desert plant expo featured cacti. Among the 7900 plants at the desert plant expo, 5000 were cacti. At that expo, the organizer took a sample of 49 plants. He found that 36 of these plants were cacti. For the organizer's sample, find and write with proper notation the sample proportion and population proportion of plants that were cacti. Write the proportions as decimals (not percentages) rounded to two decimal places. (a) Sample proportion: (Choose one) ▼ (b) Population proportion: (Choose one) ▼

A parking lot contains 10 vehicles. One is a new electric car that has only three wheels. The other 9 vehicles have four wheels each. An eighteen-wheeled truck drives onto the parking lot. The median number of wheels for the vehicles in the lot now is ________ the median before the truck came. Select one: a. Smaller than b. Exactly the same as c. Larger than

how many liked these?

The 2008 general social survey asked a nationally representative sample of 1324 adult americans to report how many hours of television they watch in a typical day. The resulting data are reported in the following table counts. Describe the shape of the distribution of number of hours of TV watching.

Identify the type of sample ( Experimental or Observational) Then tell if the sample is biased 5.The researcher stands at a shopping mall and selects the first 75 shoppers as they walk by to fill out a survey.

Dr. A. Ventura is interested in determining what kinds and how many pets people own in Bakersfield. He stands outside Petco and asks people what kind of pet they own. This is the result of his survey: dog=1; cat=2; bird=3; reptile=4; fish=5; other=6 1,1,2,2,2,1,1,3,2,3,1,1,1,2,2,4,4,2,2,1,1,1,5,4,3,4,1,1,1,2,2,6,1,1,2,2,1,2,1,2,6,3,4,5

You roll a six-sided die 60 times and got the following tally: 20 ones, 20 twos, 15 threes, 3 fours, 2 fives, 0 sixes Does this seem like a reasonable result? What inference might you draw from this result?

Suppose you are asked to toss a coin 16 times and calculate the proportion of the tosses that were heads?

 A national forest service wanted to estimate the number of deer in a particular national park. They cotton tag 71 deer and release him back into the park. Later they selected a sample of 272 deer. Of the 272 dear, 17 were tagged, assuming that the portion of tag deer and the sample holds for all deer in the forest, what is the best estimate of the number of deer in the park? 

Ted identified the top five receivers available in the game by the number of receiving yards. Player Yards Calvin Johnson 1964 Andre Johnson 1598 Brandon Marshall 1508 Demaryius Thomas 1434 Vincent Jackson 1384 Select the suspected outliers in receiving yards from the available receivers in the game.