Answer:
(D) P(D or E) = 0.72
Explanation:
That's the correct answer.
Complete question;
<em>The distribution of lengths of salmon from a certain river is approximately normal with a standard deviation of 3.5 inches. If 10 percent of salmon are longer than 30 inches, which of the following is closest to the mean of the distribution? 26 inches A 28 inches B 30 inches C 33 inches D 34 inches</em>
Option B is correct. The value that is closest to the mean of the distribution is 30inches.
The formula for calculating the z-score is expressed as:
Given the following parameters
If 10 percent of salmon are longer than 30 inches, then:
Using the z table to get the value corresponding to the mean area 0.1.
- The required z-score will be -1.285
Substitute the resulting parameters into the formula to get the mean of the distribution.
Hence the value that is closest to the mean of the distribution is 30inches.
Learn more here: brainly.com/question/15295437
This is the description of a creative idea:
A social network platform where people can list their musical interests and select their zone to find groups to go to concerts or festivals together when none of your friends have the same musical interest as you.
<h3>What are creative ideas?</h3>
Creative ideas are ideas that a person has that come from creativity, where imagination takes an important place.
A creative idea can solve a problem because it is thought specially to solve a specific situation. For example, in the idea described before, the problem is that a person might not have someone to go to a concert or festival and the social network platform can help this person find a group of people to go with.
Check more information about creativity here brainly.com/question/4121462
It should be noted that ion abundance defined by the amount of a certain isotope that occurs in a natural sample of an element.
<h3>What is ion abundance?</h3>
The ion abundance can be explained as the sum of the intensities within the isotope boundaries.
Some strategy are ben used when calculating the abundance of that compound ion and it defined by the amount of a certain isotope in natural sample.
Learn more about ion abundance at;
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