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docker41 [41]
3 years ago
6

Determine whether the description corresponds to an observational study or an experiment.Research is conducted to determine if t

here is a relation between stomach cancer and alcohol consumption.
Mathematics
1 answer:
Maslowich3 years ago
8 0

Answer:

Observational

Step-by-step explanation:

Observational studies are studies that measure the outcome of events without the introduction of interventions. They are useful in the formation of a hypothesis. The experiment described above is an observational study that compares two groups so as to measure the predictors of an outcome. No intervention is introduced to influence the outcome of the research.

An experiment on the other hand is often organized as a randomized control trial where subjects are divided into groups and a placebo or control group is introduced to monitor the outcome of the study.

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A local pizzeria offers 14 toppings for their pizzas and you can choose any 5 of them for one fixed price. How many different ty
Ne4ueva [31]
C(14,5)=\dfrac{14!}{5!9!}=\dfrac{10\cdot11\cdot12\cdot13\cdot14}{2\cdot3\cdot4\cdot5}=2002
6 0
3 years ago
What is a bank statement
azamat

Answer:

A bank statement can be defined as a record of payments in and out of a bank account.

Step-by-step explanation:

For example, energy providers offer direct debit payments as the amount that is used each month may vary and they take the required amount at each bill. Standing orders are similar to a direct debit except that they are for a fixed amount.

3 0
3 years ago
I need help with this
elena-s [515]

Answer:

the first option - 48s + 4.75

Step-by-step explanation:

3 0
3 years ago
The scatter plot below shows the profit earned each month by a new company over the first year of operation.
raketka [301]

Explanation:

To determine the slope and y-intercept of the equation, let us plot the coordinates in the slope-intercept form.

Analyzing the graph, some of the points that are on the straight line is (1,0),(3,5), (9,20)

Let us consider the points (1,0),(3,5) to determine the slope.

\begin{aligned}m &=\frac{5-0}{3-1} \\&=\frac{5}{2} \\&=2.5\end{aligned}

Since, the profit is earned in thousands of dollars, m = 2.5 or m = 2500

Thus, slope = 2500

To determine the y- intercept, let us substitute any one of the coordinate from the graph.

Thus, let us substitute (1,0) in the equation y=mx+b to determine the y-intercept.

0=2500(1)+b\\

Simplifying, we have,

b=-2500

Hence, the line of best fit equation is y=2500x-2500

7 0
3 years ago
Population of a town is 30,000 represents increase of 40% from five years ago. find the population
erma4kov [3.2K]
Well 50% of 30,000 is 15,000
So 10% is 3,000
15,000 - 3,000 = 12,000

So 40% increase is 42,000
5 0
3 years ago
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