1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ankoles [38]
3 years ago
11

sume that the change in daily closing prices for stocks on the New York Stock Exchange is a random variable that is normally dis

tributed with a mean of $0.35 and a standard deviation of $0.33. Based on this information, what is the probability that a randomly selected stock will close up $0.75 or mor
Mathematics
1 answer:
Darina [25.2K]3 years ago
4 0

Answer:

0.1131 = 11.31% probability that a randomly selected stock will close up $0.75 or more.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Normally distributed with a mean of $0.35 and a standard deviation of $0.33.

This means that \mu = 0.35, \sigma = 0.33.

What is the probability that a randomly selected stock will close up $0.75 or more?

This is 1 subtracted by the p-value of Z when X = 0.75. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{0.75 - 0.35}{0.33}

Z = 1.21

Z = 1.21 has a p-value of 0.8869.

1 - 0.8869 = 0.1131

0.1131 = 11.31% probability that a randomly selected stock will close up $0.75 or more.

You might be interested in
Which answer choice contains all the factors of 10
babunello [35]
OK so the factor of 10 is 1 times 10 and 5 times 2
3 0
3 years ago
Translate the following and explain where these examples could be
ki77a [65]
A) x-6; you have x amount of money and pay 6 dollars for a hat.
b) 2(x2);
5 0
3 years ago
Perform the indicated operation. 7 + 9 + (-4)
e-lub [12.9K]
=12 if we are talking in terms of basic operations.
6 0
3 years ago
Read 2 more answers
A scientist is working with 14 meters of gold wire. How long will the wire be in millimeters?
Tcecarenko [31]
In a meter there are 100 cm.
In 100 cm there are 1000 mm. 

Therefore in 1 meter you have 1000 millimeters. 

Then to find out how many millimeters you have in 14 meters, you just multiply 14 by 1000 to give you 14000 mm.

Final answer= 14 m of gold wire is the equivalent to 14000 mm of wire.
5 0
3 years ago
Read 2 more answers
The sum of 16 and a number x is equal to 19
Vladimir79 [104]

Answer:

x = 3

Step-by-step explanation:

We can write the equation as 16 + x = 19

To solve we can work backwards, I know the opposite of adding is subracting... so 19 - 16 = 3 which means x is equal to 3.

Hope that helps and have a great day!

4 0
3 years ago
Read 2 more answers
Other questions:
  • Olivia needs 54 licks for every 3 lollipops she eats.
    14·2 answers
  • Create a ratio table for making lemonade with a lemon juice to water of ratio of 1:3 show how much lemon juice would be needed i
    14·2 answers
  • john's first 3 tests scores in chemistry were 70, 75, 91. what was his median score? a. 72.5 b. 91 c. 75 d. 10
    15·1 answer
  • How do you turn a fraction into a percent
    7·2 answers
  • If two squirrels live in one square meter of a fifty square meter park what is the park's estimated squirrel population?
    5·2 answers
  • 15 + 4x = 12 + x nm jjk kj k j jk kj k kj kjkj
    13·2 answers
  • Which expressions represents a 20% discount off the price of an item that originally cost d dollars
    14·1 answer
  • Miranda needs to add 68 + 19 mentally but is struggling. If she knows that 68 + 20 = 88, how can she use this to help?
    15·1 answer
  • THIS QUESTION IS WORTH 20 PTS!!! WILL REWARD BRAINLIEST!!!
    11·1 answer
  • Can an absolute value function have an inverse function? If so, give an
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!