A 12 die is rolled. The set of equally likely outcomes is (1,2,3,4,5,6,7,8,9,10,11,12). Find the probability of rolling a 12
Paraphin [41]
Answer:
Step-by-step explanation:
You phrase probability as possible number of the wanted outcome over all possible outcomes.
For this, it would be 1/12, because rolling a 12 is one option out of 12 possible options.
Answer: 3x3
Step-by-step explanation: 3 is a prime number
Given the Histogram that summarizes the data obtained by Kemala:
(a) The Class Width is the length of the intervals.
In order to find the Class Width, you need to subtract the lowest value of each bar from the lowest value of the previous bar.
In this case, you get:
Therefore:
(b) You need to identify the number of beaches that had 10 or fewer pregnant turtles. Therefore, you need to add the corresponding number of beaches that correspond to these bars (A, B and C):
Then, you get:
(c) You can identify that the interval of the last bar is from 11 to 13, and the number of beaches that corresponds to that bar is:
As you can see below
Hence, the answers are:
(a)
(b)
(c)
Answer:
Correct option:
"z requires that you know the population standard deviation σ which may be unrealistic."
Step-by-step explanation:
The hypothesis test for significant population mean <em>μ</em> can be done either using the <em>z</em>-distribution of <em>t</em>-distribution.
Both the distribution require certain conditions to be fulfilled to use.
For using a <em>z</em>-distribution to perform a hypothesis test for <em>μ</em> the conditions to fulfilled are:
- Population is Normally distributed.
- The population standard deviation is known.
- The sample selected is large.
For using a <em>t</em>-distribution to perform a hypothesis test for <em>μ</em> the conditions to fulfilled are:
- Population is Normally distributed.
- The sample selected is randomly selected.
If the population standard deviation is not known and we have to compute the sample standard deviation then use the <em>t</em>-distribution to perform the test for population mean.
Thus, the correct option is:
"z requires that you know the population standard deviation σ which may be unrealistic."
