utocovariance r₁(h) and r2(h), respectively. That is Cov[Xt, Xt+h] = r₁(h), Cov[Yt, Yt+h] = r2(h) and cov[Xt, Ys] = 0 = r₁(0)] and Var[Y] = t, s,h, (in particular, Var[Xt r2(0)). Consider the ti oXtYt−2+5X0, t = 0±1, ±2,..., where ßo and ß₁ are nonrandom constants. ind the mean and variance of Zt.

Scientists are in search of a mosquito repellant that is more effective. To test the effectiveness of the new compound versus the current compound, scientists have randomly selected 100 people to participate in their experiment. 100 bins, each with an equal number of mosquitoes in them, are available for the experiment. After a repellant is applied to a subject’s arm, they will insert theirforearm into a bin for 1 minute. The number of mosquito bites on the arm after 1 min will be counted.   (IMAGE)) Write your answers in the box below. Make sure to identify which answer belongs to what question (e.g. Explanatory: variable a) Explanatory variable:  Treatments: Response variable: Subjects/individuals: Design of Experiment:

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The figure below shows the total number P(t) of Covid-19 cases in Minnesota¹ confirmed up to day t, where t = 0 is March 1, 2020. P (total cases) 5000 4000 3000 2000 1000 10 20 30 40 50 60 ¹Smoothed from JHU CSSE COVID-19 data at github.com/CSSEGISandData/COVID-19, accessed March 1, 2021. (a) What are the units of P (t)? OO days confirmed cases days per confirmed case confirmed cases per day t (days) (b) Estimate and compare P (30) and P (50). What does this tell you about the Covid-19 outbreak in Minnesota? P (30)~ i and P (50)~ This tells us that