The following table of 850 students shows those that have or don’t have covid-19 and shows those who had a positive test or a negative test. I just made this data up so don’t take this as representative of our current state. Answer the following questions.     Positive Test Negative Test   Have Covid-19 45 5   Don’t have Covid-19 25 775             Let D be the event you Don’t have Covid-19 and N the event you have a negative test. P(D) = _____ P(D | N) = ______ Are D and N independent? ______ 4. Explain _______ 5. What is the probability that you Have Covid-19 even though the test came back negative

For this lab, you're asked to collect information from fellow students. Since we can't do that, use the following list of numbers that I have provided, which will not make any sense until you've read the lab.  0 Diamonds   1 1 Diamond     5 2 Diamonds   12 3 Diamonds   15 4 Diamonds   7 5 Diamonds   2 6 Diamonds  1 7,8,9 and 10 Diamonds 0  ProcedureThe experimental procedure for empirical data is to pick one card from a deck of shuffledcards.1. The theoretical probability of picking a diamond from a deck is _________.2. Shuffle a deck of cards.3. Pick one card from it.4. Record whether it was a diamond or not a diamond.5. Put the card back and reshuffle.6. Do this a total of ten times.7. Record the number of diamonds picked.8. Let X = number of diamonds. Theoretically, X ~ B(_____,_____) attached images are more questions following the above....

The line of best fit through a set of data is ý = 38.241 – 1.827r According to this equation, what is the predicted value of the dependent variable when the independent variable has value 20? y = Round to 1 decimal place.

Question 2 Please solve with simple probability rules

A health educator wants to evaluate the effect of a dental film on the frequency with which children brush their teeth. Eight randomly chosen kids are measured on the number of times they brushed their teeth for one month before viewing the dental film and again for a month after the film.    Child  Before  After  1 23 27  2 28 29  3 22 25  4 30 30  5 26 25  6 24 28  7 25 28  8 22 24   Therefore, the research hypothesis is that the dental film is effective at changing the frequency with which children brush their teeth.     Hint: Make sure you do After-Before.       Step 1. Express the substantive question as two statistical hypotheses. H0: Answer Answer Answer   H1: Answer Answer Answer Step 2. Draw the sampling distribution under the null hypothesis using the p < .05 as the criterion for statistical significance to determine the critical values. What is the center of the distribution? Answer Answer Answer What are the critical values?…

please answer question 16