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
kvv77 [185]
3 years ago
12

A certain chalkboard manufacturer determines that their largest blackboard model has a mean length of 5.00 m and a standard devi

ation of 1.0 cm. A certain school district orders 1000 of these chalkboards. How many are likely to have lengths of under 4.98 m?
Mathematics
1 answer:
Igoryamba3 years ago
7 0

Answer:

23 chalkboards

Step-by-step explanation:

Given:

Mean length = 5 m

Standard deviation = 0.01

Number of units ordered = 1000

Now,

The z factor = \frac{\textup{x - Mean}}{\textup{standard deviation}}

or

The z factor = \frac{\textup{4.98 - 5}}{\textup{0.01}}

or

Z = - 2

Now, the Probability P( length < 4.98 )

Also, From z table the p-value = 0.0228

therefore,

P( length < 4.98 ) = 0.0228

Hence, out of 1000 chalkboard ordered (0.0228 × 1000) = 23 chalkboard are likely to have lengths of under 4.98 m.

You might be interested in
Y&gt; 3x-2<br> Graph the solution
anastassius [24]

Answer:

4 es esa ????k nose

5 0
3 years ago
9) The original price of a coffee table is d dollars. You use a coupon and buy the table for (d - 4)
Anit [1.1K]

Answer:

I dopnt know

Step-by-step explanation:

Im asking the same question lol

4 0
3 years ago
Read 2 more answers
This is inequality and solution. plz help. im stuck. THIS IS URGENT
olya-2409 [2.1K]
I hope this helps you



x>4


x>-4


x>4
6 0
3 years ago
If I went to bed at around 1:20 AM, and woke up at 8 AM, around how many hours of sleep did I get?
Nezavi [6.7K]

Answer:

you would get about 6:20 of sleep

8 0
1 year ago
Read 2 more answers
The buying price is $10 and the markup is 80% of the buying price what is the markup?
KATRIN_1 [288]
$10 * .8 = $8 that's it
8 0
2 years ago
Other questions:
  • Please help im so stupid
    9·1 answer
  • Work out the equation of the line which has a gradient of 1/2 and passes through the point (4,-2) ❗️THIS IS DUE PRETTY SOON SO H
    14·1 answer
  • The volume of a fear is 4,000pi m³. What is the surface area of the sphere to the nearest square meter?
    5·1 answer
  • Ema bought 6 bags of walnuts . Each bag contained 3/4 of a pound of walnuts . What was the total weight of the walnuts??
    6·2 answers
  • Maia's calculator displays a number as 9.125 E10. What is this number in standard form?
    14·2 answers
  • What is an example of when you might need to use decimals and other rational numbers in everyday life?
    10·1 answer
  • GIVING BRAINLIEST TO CORRECT ANSWER
    13·2 answers
  • A clown who is shot from a cannon lands in a net 50 feet away, write a eqatuion for the paraola
    6·1 answer
  • I need both answers ​
    5·2 answers
  • Question 3 of 10
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!