A standardized test is designed so that scores have a mean of 50 and a standard deviation of 4. What is the probability that a test score is above 54?
 👍
 👎
 👁
 ℹ️
 🚩
2 answers

about 15.9%
 👍
 👎
 ℹ️
 🚩
answered by 9709 
google it.
 👍
 👎
 ℹ️
 🚩
answered by Your Narrator
Answer this Question
Related Questions

statistics
A personality test is administered to a large group of subjects. Five scores are shown below, in original units and in standard units. Fill in the blanks. 79 64 52 72 _ 1.8 .8 _ _ 1.4
 asked by amanda
 2,663 views

College Prep
What is the main function of an official transcript in high school? a. to reflect high school graduation credits and requirements b.to monitor attendance and behavior c. to chart standardized test scores and class grades d. to secure state and federal
 asked by Jessie
 7,263 views

mathematics
2) From the records of XYZ University, there were 1564 freshmen students who took the IQ test during 1st Sem of S.Y. 2018  2019. Assume that the IQ test scores are normally distributed with a mean of 108 and a standard deviation of 12. How many students
 asked by arjon
 1,043 views

Statistics
IQ test scores are normally distributed with a mean of 100 and a standard deviation of 15. Find the x score that corresponds to a zscore of 2.33.
 asked by chalulu
 13,123 views

probability
A new medical test has been designed to detect the presence of the mysterious Brainlesserian disease. Among those who have the disease, the probability that the disease will be detected by the new test is 0.7. However, the probability that the test will
 asked by bob
 1,398 views

Algebra
Your test scores in one class are 81 and 87. What possible scores can you earn on your next test to have a test average between 84 and 89, inclusive?
 asked by Lindsey
 2,677 views

statistics
the five number summary of the distribution of scores on a statistics exam is 0 26 31 36 50 316 students took the exam. the histogram of all 316 scores was approximately normal. Thus the variance of test scores must be about I know about subtracting 2631
 asked by Anonymous
 1,709 views

algebra
Your test scores in one class are 84 and 88 What possible scores can you earn on your next test to have a test average between 86 and 90 inclusive?
 asked by samuel
 1,305 views

Math
The scores on the GRE are normally distributed with a mean of 541 and a standard deviation of 89. Use the 689599.7 rule to find the percentage of people taking the test who score between 363 and 541
 asked by Scott
 5,112 views

MAth
Scores of an IQ test have a bell shaped distribution with a mean of 100 and a standard deviation of 19. Use the empirical rule to determine the following. a.) What % of people has an IQ score between 81 and 119?
 asked by quita
 5,078 views

math
The distriubution of the SAT scores in math for an incoming class of business students has a mean of 580 and standard deviation of 25. Assume that the scores are normally distributed. a. Find the probability that an individual's SAT score is less that 550.
 asked by sri
 892 views

stats.
The GMAT test is required for admission to most graduate programs in business. In a recent year, the GMAT test scores were normally distributed with a mean of 550 and standard deviation of 100. A. Find the first quartile for the distribution of GMAT
 asked by Christina
 2,502 views

maths
Suppose scores on an IQ test are normally distributed.If the test has mean of 100 and standard deviation of 10,what is the probability that a person who takes the test will score between 90 and 110?
 asked by boby
 1,790 views

math
Jen and Ron each took five tests. Their test scores are shown below. Jen: {45, 91, 84, 66, 74} Ron: {70, 95, 99, 69, 72} Which statement correctly compares the students’ test scores? A. The median of Jen’s scores is greater than the median of Ron’s
 asked by quandle dingle
 352 views

Statistics
The scores on a math test are normally distributed. if the mean is 72 and the standard deviation is six, what is the range of 98% of the scores?
 asked by Barb
 2,475 views

math
The stemandleaf plot shows the test scores of a science class. How many students scored 78? science test scores 6: 8,8,9 7:2 ,5,5,5,8,8,8,8,9 8: 2,2,2,6,6,9,9 9: 0,0,0,2,2,5,5,5 key: 8/2 or 8 and 2 means 82 is the answer 1 or 2 or 3 or 4 and also this
 asked by help
 1,807 views

Math
Jen and Ron each took five tests. Their test scores are shown below. Jen: {45, 91, 84, 66, 74} Ron: {70, 95, 99, 69, 72} Which statement correctly compares the students’ test scores?
 asked by sStitch
 420 views

statistics
If I know that a set of test scores has a mean of 75 and a standard deviation of 8 what can I conclude?
 asked by allison
 3,112 views

Math
The combined math and verbal scores for students taking a national standardized examination for college admission, is normally distributed with a mean of 620 and a standard deviation of 220. If a college requires a student to be in the top 10 % of students
 asked by Ashley
 3,049 views

Math
In your class, you have scores of 73,85,76, and 92 on the first four of five tests. To get a grade of Upper C, the average of the first five tests scores must be greater than or equal to 70 and less than 80. a) Solve an inequality to find the least
 asked by Ms. E
 11,084 views
Still need help?
You can ask a new question or browse existing questions.