Answer:
<em>D.</em><em> He can increase the number of trials.</em>
Step-by-step explanation:
Jonas is conducting an experiment using a 10-sided die. So the theoretical probability of rolling a 3 in a single trial is,
So the theoretical expected outcome of 3 in 20 roll would be,
But when he rolled the die 20 times, where four of those rolls resulted 3.
Which is 2 times more than the theoretical expectation.
Increasing the number of trials from 20, the expected outcome will increase.
As the number of trials is multiplied with , so bigger the number is from 20, bigger the value.
As we know,
If we want to increase the expected value, we have to increase the number of trials.
Answer:
The probability that the result of the spin is green and the coin lands tails up :
Step-by-step explanation:
As
the spinner has following three colors:
Also
the coin has two sides which are:
As the sample space is:
{red - head; red - tail; green - head; green - tail; yellow - head; yellow - tail}
So different colors with coin sides can be combined in total ways.
Therefore, the probability that the result of the spin is green and the coin lands tails up :
No, you can't do it using integers. But the question doesn't restrict you to integers anywhere. It simply asks what 'x' produces the same output from both machines.
The upper machine produces x^2+2.
The lower machine produces (x+2)^2.
If the outputs are the same, then
x^2+2 = (x+2)^2 .
Crunch THAT through your own solve-o-matic machine, and you find that it works when x= -1/2 .