Mathematics, 25.08.2019 02:10 ineedhelp2285
The time required to finish a test in normally distributed with a mean of 80 minutes and a standard deviation of 15 minutes. what is the probability that a student chosen at random will finish the test in more than 95 minutes?
Answer from: thebasedgodchri
The z-score for 95 minutes is:
Reference to a standard normal distribution shows that the required probability is approximately 0.16 or 16%.
Reference to a standard normal distribution shows that the required probability is approximately 0.16 or 16%.
Answer from: Quest
step-by-step explanation:
if you want to solve percent error follow these steps.
1. subtract the accepted value from the experimental value.
2. take the absolute value of step 1.
3. divide that answer by the accepted value.
4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.
if you want to solve percent of change just do this.
1. work out the difference (increase) between the two numbers you are comparing.
2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.
hope this : )
Answer from: Quest
25% increaseplus i think decrease i only know increase: ((
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