Xaviiier
05.05.2020 •
Mathematics
High school students across the nation compete in a financial capability challenge each year by taking a National Financial Capability Challenge Exam. Students who score in the top 13 percent are recognized publicly for their achievement by the Department of the Treasury. Assuming a normal distribution, how many standard deviations above the mean does a student have to score to be publicly recognized
Solved
Show answers
More tips
- C Computers and Internet Clearing Cache: How to Speed Up Your Browser...
- S Style and Beauty How are artificial nails removed?...
- S Style and Beauty Secrets of Tying a Pareo: 5 Ways...
- F Food and Cooking Everything You Need to Know About Pasta...
- C Computers and Internet How to Choose a Monitor?...
- H Horoscopes, Magic, Divination Where Did Tarot Cards Come From?...
- S Style and Beauty How to Make Your Lips Fuller? Ideas and Tips for Beautiful Lips...
- C Computers and Internet How to Learn to Type Fast?...
Answers on questions: Mathematics
- M Mathematics Patty gives the birds at a sanctuary 20 ounces of seed each day. How much bird seed does she use in 160 days?...
- M Mathematics ~ ¡!¡ Regular Polygon Angle Measurements ¡!¡ ~ ~ Help my empty head- ~...
- M Mathematics 15 matt is making cookies. he adds fraction 3 over 4 of a cup of sugar to a bowl. he then removes two fraction 1 over 8 cups of sugar. which of the following best explains...
- S Social Studies In an experiment to test the effects of alcohol on memory, the experimenter gives vodka mixed in orange juice to one group of subjects and orange juice with no vodka...
- M Mathematics 1/8 of a number increased by 20 is 30 to find the number...
- E English 3. Which of the following ideas is LEAST important to include in a summary of this article? A. The cause of CCD remains a mystery. B. Studies show that pesticides may...
- B Biology *science*50 points to whoever’s right (it’s not a scam I’ll make a different post with 50 points if your right) What are the energy requirements for analog and digital...
- M Mathematics Sheldon harvest the strawberries and tomatoes in his garden. he picks 1 2/5 kg lesss strawberries in the morning tha in the afternnoon. if sheldon picks 2 1/4 in the...
Ответ:
A student have to score 1.28 standard deviations above the mean o be publicly recognized.
Step-by-step explanation:
If , then , is a standard normal variate with mean, E (Z) = 0 and Var (Z) = 1. That is, .
The distribution of these z-variates is known as the standard normal distribution.
In statistics, a standardized score is the number of standard deviations an observation or data point is above the mean.
Thus, z-scores are a type of standardized scores.
It is provided that the students who score in the top 13 percent in the National Financial Capability Challenge Exam are recognized publicly for their achievement by the Department of the Treasury.
Let x be score of the top 13%.
So, to be are recognized publicly for their achievement by the Department of the Treasury the probability of score x must be:
P (X < x) = 0.90
⇒ P (Z < z) = 0.90
The value of z for the above probability is:
z = 1.28
*Use a z-table.
Thus, a student have to score 1.28 standard deviations above the mean o be publicly recognized.
Ответ:
to be precise, it would be 1,234,567
Step-by-step explanation: