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
kicyunya [14]
3 years ago
15

The temperature at any random location in a kiln used in the manufacture of bricks is normally distributed with a mean of 1000 a

nd a standard deviation of 50°F. When glazed bricks are put in the oven, if the temperature is below 900°F they will miscolor. If the bricks are placed randomly throughout the kiln, the proportion of glazed bricks that miscolor is closest to Group of answer choices
a. 49.38%.
b. 2.28%.
c. 47.72%.
d. 0.62%.
Mathematics
1 answer:
NeX [460]3 years ago
7 0

Answer:

b. 2.28%.

Step-by-step explanation:

Mean temperatue (μ) = 1000°F

Standard Deviation (σ) = 50 °F

For any temperature value, X, the z-score is given by:

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

For X= 900°F

z=\frac{900-1000}{50}\\z=-2.0

A z-score of -2.0 corresponds to the 2.28-th percentile of a normal distribution. Therefore, the probability that X<900 is:

P(X

You might be interested in
How do I factor 5n^2 +19n+12
trapecia [35]
I hope this helps you

3 0
3 years ago
Superman and Spider-Man take turns in saving the world in the ratio of 4:3. There are 42 disastrous events , how many times do t
sladkih [1.3K]

Answer:

42 times

Step-by-step explanation:

4 0
3 years ago
How many electrons would be<br> found in the ion whose symbol is<br> given below?<br> I-
iris [78.8K]
53 or 54 i think !!!
4 0
3 years ago
Y=3x+4 y=36x+7 determine whether the graph of each pair of equations are parallel, pendicularbor neither
Len [333]
Parallel is the answer
6 0
3 years ago
Which is represented by the table
mezya [45]

Answer:

I think its is C

6 0
3 years ago
Other questions:
  • The numbers of teams remaining in each round of a single-elimination tennis tournament represent a geometric sequence where an i
    14·1 answer
  • What does 2 times the quantity x plus 6 look like in an equation
    10·2 answers
  • Which expression is equivalent to the given expression?
    9·2 answers
  • I hot-air ballon is held at a constant altitude by two ropes that are anchored to the ground. One rope is 110 feet long and make
    12·1 answer
  • Basing the Results on Probability
    15·2 answers
  • If b – 4 = -12, what is the value of b?
    8·2 answers
  • Help asap please!! 50 points and BRAINLIEST!!! Thank you!!
    12·1 answer
  • Jack needs 22 pirates for every 2 pirate ships he manages
    15·1 answer
  • What is the area of the figure? Please help!
    12·1 answer
  • I will give brainliest to the first person to answer the question! Please be correct and please help &lt;33
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!