1. Here are the four steps of the statistical process in correct order:
1) Plan - <span>Form a question that can be answered by data.
2) Collect data - D</span><span>esign and implement a plan that collects data.
3) Process - </span><span>Analyze the data using graphical and numerical methods.
4) Present and discuss - </span><span>Interpret and compare the data.
So your answer is the last option.
2. I am definitely sure that </span><span>Edgar wrote a statistical, because every neighbor can give a different answer. A statistical question is the question which you don't expect to get only one answer. Instead of that you will get a variety of different answers.
3. According to what I've mentioned before, the only statement which shows a characteristic of a statistical question is: </span><span>There can be variability in the answers to the question.
4. I am completely sure that this one is statistical question: </span>How many hours do you spend each week training for a sports league? Because it could be answered with variability.
5. The only statistical question in his survey is: <span>How many hours do you spend at the food court each month?. Because it gives him more different answers for his survey.</span>
Answer:
Step-by-step explanation:
Let the rate at which the bacteria grow be represented by the exponential equation
P(t) = P0e^kt
P(t) is the population of the bacteria after time t
P0 is the initial population
k is the constant of variation
t is the time
If the initial Population is 160 bacteria's, them the equation becomes;
P(t) = 160e^kt
b) if After 5 hours there will be 800 bacteria, this means
at t = 5 p(t) = 800
Substitute and get k
800 = 160e^5k
800/160 = e^5k
5 = e^5k
Apply ln to both sides
Ln5 = lne^5k
ln5 = 5k
k = ln5/5
k = 0.3219
Next is to calculate the population after 7hrs i.e at t = 7
P(7) = 160e^0.3219(7)
P(7) = 160e^2.2532
P(7) = 160(9.5181)
P(7) = 1522.9
Hence the population after 7houra will be approximately 1523populations
c) To calculate the time it will take the population to reach 2790
When p(t) = 2790, t = ?
2790 = 160e^0.3219t
2790/160 = e^0.3219t
17.4375 = e^0.3219t
ln17.4375 = lne^0.3219t
2.8587 = 0.3219t
t = 2.8587/0.3219
t = 8.88 hrs
Hence it will take approximately 9hrs for the population to reach 2790
Y=90x+2,000
90 is the rate of change because the hot air balloon descends 90 feet per minute.
And 2,000 is the starting point because the hot air balloon started the descent at 2,000 feet.
