Mathematics, 24.05.2020 00:57 woodfordmaliky
A department store is running a promotion. As you enter the store, you are 4 points
given a scratch-off card with 25 spots from which to choose. At the
register, you will scratch off one spot and get that amount of money off
any purchase over $30. On the card, there are eight $1-off spots, five $5-
off spots, three $10-off spots, one $20-off spot and one $30-off spot. Use
the table below to help determine the expected value/fair price. Explain
the steps you took to get your answer.
*
Probability
Dollar off Purchase
w
Answers: 2
Mathematics, 21.06.2019 18:00, heids17043
Ageologist had two rocks on a scale that weighed 4.6 kilograms together. rock a was 0.5 of the total weight. how much did rock a weigh?
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Mathematics, 21.06.2019 19:30, apere655
Ascientist wants to use a model to present the results of his detailed scientific investigation. why would a model be useful? a )because the model makes the concepts easier to understand b) because the model is easy to put together and to use c) because the model prevents other scientists from asking questions d) because the model requires the audience to pay full attention to it i don't know what to choose because between a and d a is much more likely than d because it only wants to get the attention of the audience. i'm confuse.
Answers: 1
Mathematics, 21.06.2019 22:30, thelonewolf5020
Amachine that produces a special type of transistor (a component of computers) has a 2% defective rate. the production is considered a random process where each transistor is independent of the others. (a) what is the probability that the 10th transistor produced is the first with a defect? (b) what is the probability that the machine produces no defective transistors in a batch of 100? (c) on average, how many transistors would you expect to be produced before the first with a defect? what is the standard deviation? (d) another machine that also produces transistors has a 5% defective rate where each transistor is produced independent of the others. on average how many transistors would you expect to be produced with this machine before the first with a defect? what is the standard deviation? (e) based on your answers to parts (c) and (d), how does increasing the probability of an event a↵ect the mean and standard deviation of the wait time until success?
Answers: 3
A department store is running a promotion. As you enter the store, you are 4 points
given a sc...
given a sc...
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