A sample of 4 different calculators is randomly selected from a group containing 20 that are defective and 10 that have no defects. What is the probability that all four of the calculators selected are defective? Give your answer as a percent rounded to the nearest tenth of a percent.

A market researcher conducts a survey of residents in three neighborhoods. The residents are asked whether they prefer ice cream or gelato. The results, given as joint relative frequencies are shown in the two-way table. What is the probability that a randomly selected resident of Frogtown will prefer ice cream? Round your answer to the nearest tenth of a percent. Frogtown Irondale Arnona Ice Cream 0.31 0.12 0.17 Gelato 0.15 0.16 0.09 about%

Suppose that 24% of US adults favor an increase in taxes.  What is the probability that in a group of 8 random Americans, exactly 5 favor lower taxes? Answers should be percentages correct to two decimal places.

For this problem, carry at least four digits after the decimal in your calculations. Answers may vary slightly due to rounding.The National Council of Small Businesses is interested in the proportion of small businesses that declared Chapter 11 bankruptcy last year. Since there are so many small businesses, the National Council intends to estimate the proportion from a random sample. Let p be the proportion of small businesses that declared Chapter 11 bankruptcy last year.

The following frequency table summarizes how many animals are surrendered to a local animal shelter daily.  Dogs 15 Cats 14 Rabbits 5 Birds 1 Using experimental probability, what is the probability that a cat will be surrendered tomorrow? Express your answer as a fraction in lowest terms or a decimal rounded to the nearest millionth.

The following frequency table summarizes how many animals are surrendered to a local animal shelter daily.  Dogs 6 Cats 13 Rabbits 4 Birds 2 Using experimental probability, what is the probability that a cat will be surrendered tomorrow? Express your answer as a fraction in lowest terms or a decimal rounded to the nearest millionth.

4. Of the 125 million households in the U.S., 86 million of them have a pet. If you randomly survey a sample of 6 households, what are the odds that all six of them have a pet?

3. Data collected from a website show that 60% of visitors use Scavenger as their web browser. You randomly select 100 visitors from the website. What is the probability that at most 55 of the visitors use Scavenger? Round your answer to the nearest tenth of a percent. Answer choices: 91.7% 60.0% 55.0% 17.9%

Blood pressure: High blood pressure has been identified as a risk factor for heart attacks and strokes. The proportion of U.S. adults with high blood pressure is  0.4 . A sample of  41  U.S. adults is chosen. Use the TI-84 Plus Calculator as needed. Round the answer to at least four decimal places     Find the probability that more than  44%  of the people in this sample have high blood pressure. The probability that more than  44%  of the people in this sample have high blood pressure is    .

Solve the following problems on a clean sheet of paper. Upload photos of your answer sheets showing your name and solution. Predict whether the given scenario/computation shown below is certain, likely, even chance, unlikely, or impossible to occur. Use the provided probability scale to plot the given items. Note: There should be THREE ANSWERS each number The probability, the term (certain, likely, etc.) and the probability scale. 4. A lot of 24 bulbs contains 25% defective bulbs. A bulb is drawn at random from the lot. It is found to be not defective and it is not put back. Now, one bulb is drawn at random from the rest. What is the probability that this bulb is not defective?