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
sergeinik [125]
3 years ago
9

A store that specializes in shipping packages reports that the distribution of packages shipped during the winter holidays is no

rmally distributed with a mean of 4.5 pounds with a standard deviation of 1.8 pounds
What is the probability that a randomly selected package weighs between 3 and 5 pounds?
a.) 0.4071
b.) -0.8333
c.) 0.2023
d.) 0.6094
Mathematics
1 answer:
scZoUnD [109]3 years ago
7 0

Answer: Hey, do you know how to screenshot images? There is also a website for Brainly if needed

Step-by-step explanation:

You might be interested in
A random sample of 10 shipments of stick-on labels showed the following order sizes.10,520 56,910 52,454 17,902 25,914 56,607 21
sammy [17]

Answer:

Confidence Interval: (21596,46428)

Step-by-step explanation:

We are given the following data set:

10520, 56910, 52454, 17902, 25914, 56607, 21861, 25039, 25983, 46929

Formula:

\text{Standard Deviation} = \sqrt{\displaystyle\frac{\sum (x_i -\bar{x})^2}{n-1}}  

where x_i are data points, \bar{x} is the mean and n is the number of observations.  

Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}

Mean =\displaystyle\frac{340119}{10} = 34011.9

Sum of squares of differences = 551869365.6 + 524322983.6 + 340111052.4 + 259528878 + 65575984.41 + 510538544 + 147644370.8 + 80512934.41 + 64463235.21 + 166851472.4 = 2711418821

S.D = \sqrt{\frac{2711418821}{9}} = 17357.09

Confidence interval:

\mu \pm t_{critical}\frac{\sigma}{\sqrt{n}}

Putting the values, we get,

t_{critical}\text{ at degree of freedom 9 and}~\alpha_{0.05} = \pm 2.2621

34011.9 \pm 2.2621(\frac{17357.09}{\sqrt{10}} ) = 34011.9 \pm 12416.20 = (21595.7,46428.1) \approx (21596,46428)

7 0
3 years ago
The slope of the line going through the points 2,6 and -1,-3
Verizon [17]
Answer: 3
hope that helps!

8 0
3 years ago
Write and evaluate the expression. Then, complete the statements. Ten less than the quotient of thirty and a number Evaluate whe
Artyom0805 [142]

Answer:

expression:  (30/t) - 10

evaluation:  30/2 - 10 = 5

Step-by-step explanation:

8 0
3 years ago
Anthony and Michelle have £65.25 between them. Anthony's amount is two thirds of Michelle's amount. How much money does each hav
pogonyaev

Answer:

43.50

Step-by-step explanation:

MULTIPLE THE 2 NUMBERS

7 0
2 years ago
James types 84 words in 2 minutes he estimates that he has his history essay is 420 words long what is the least amount of time
adell [148]
84 words = 2 min
1 word = 2/84 = 1/42
420 words = 1/42 x 420 = 10 mins


Answer: 10 mins
4 0
3 years ago
Other questions:
  • Which is a solution to (x – 3)(x + 9) = –27?<br><br> x = –9<br> x = –3<br> x = 0<br> x = 6
    13·2 answers
  • What is the range of this relation (3,2) (-3,0) (-4,0) (-2,4)
    13·1 answer
  • Which equation has the solutions X=1 +-SQRT 5?
    14·2 answers
  • Which statement is true regarding the functions on the graph
    9·1 answer
  • Drag each tile to the correct box.
    7·1 answer
  • 27x52 distributive property
    10·1 answer
  • Veronica wants to check her work after evaluating Negative 108 divided by (negative 6). What steps can she follow to verify her
    12·2 answers
  • Help pleaseeeeeee and good morning
    13·1 answer
  • 5 ( n - 7 ) = 2 ( n + 14 )
    13·2 answers
  • a chef is going to use a mixture of two brands of Italian dressing. The first brand contains 5% vinegar and the second Brian con
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!