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
sladkih [1.3K]
3 years ago
7

Isabel wanted her box of candy to last 6 days. If the box weighs one- half of pound、how much should she eat each day.

Mathematics
1 answer:
Maksim231197 [3]3 years ago
3 0

Answer:

i think she should eat

I think ??????

Step-by-step explanation:

You might be interested in
Which equation represents the graphed function?
NemiM [27]
Y=1/4-2 is the correct answer. you go up one and over four. the y-intercept is -2
7 0
3 years ago
Read 2 more answers
Determine the fraction of the total interest owed after the fourth month of a 12 month loan
tamaranim1 [39]
8/12 is still owed, and when you simplify the fraction it becomes 2/3
7 0
3 years ago
How do i do x/3=3 Please help!! thanks!!
Shkiper50 [21]
If you're looking for "x"

x/3 = 3
x = 3*3
x= 9
6 0
3 years ago
Read 2 more answers
Multiplicative inverse of 3/7 x 2/7
Ahat [919]

<h3>\frac{ - 7}{3}  \times  \frac{ - 7}{2}</h3>
  • It is the multiplicative inverse of 3/7 × 2/7
6 0
3 years ago
Read 2 more answers
a survey amony freshman at a certain university revealed that the number of hours spent studying the week before final exams was
Marat540 [252]

Answer:

Probability that the average time spent studying for the sample was between 29 and 30 hours studying is 0.0321.

Step-by-step explanation:

We are given that the number of hours spent studying the week before final exams was normally distributed with mean 25 and standard deviation 15.

A sample of 36 students was selected.

<em>Let </em>\bar X<em> = sample average time spent studying</em>

The z-score probability distribution for sample mean is given by;

          Z = \frac{ \bar X-\mu}{\frac{\sigma}{\sqrt{n} } }} }  ~ N(0,1)

where, \mu = population mean hours spent studying = 25 hours

            \sigma = standard deviation = 15 hours

            n = sample of students = 36

The Z-score measures how many standard deviations the measure is away from the mean. After finding the Z-score, we look at the z-score table and find the p-value (area) 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.

Now, Probability that the average time spent studying for the sample was between 29 and 30 hours studying is given by = P(29 hours < \bar X < 30 hours)

    P(29 hours < \bar X < 30 hours) = P(\bar X < 30 hours) - P(\bar X \leq 29 hours)

      

    P(\bar X < 30 hours) = P( \frac{ \bar X-\mu}{\frac{\sigma}{\sqrt{n} } }} } < \frac{ 30-25}{\frac{15}{\sqrt{36} } }} } ) = P(Z < 2) = 0.97725

    P(\bar X \leq 29 hours) = P( \frac{ \bar X-\mu}{\frac{\sigma}{\sqrt{n} } }} } \leq \frac{ 29-25}{\frac{15}{\sqrt{36} } }} } ) = P(Z \leq 1.60) = 0.94520

                                                                    

<em>So, in the z table the P(Z </em>\leq<em> x) or P(Z < x) is given. So, the above probability is calculated by looking at the value of x = 2 and x = 1.60 in the z table which has an area of 0.97725 and 0.94520 respectively.</em>

Therefore, P(29 hours < \bar X < 30 hours) = 0.97725 - 0.94520 = 0.0321

Hence, the probability that the average time spent studying for the sample was between 29 and 30 hours studying is 0.0321.

7 0
3 years ago
Other questions:
  • Which decimal number is equal to the fraction 2/5
    11·1 answer
  • The ac is a leg of the right triangle <br> True <br> False
    13·1 answer
  • Rosa earns $12 per hour. In 7.5 hours, she will earn x dollars. Which is a valid proportion that can be used to solve the proble
    12·2 answers
  • What is the actual area, in square meters of this field?
    10·2 answers
  • The distance between Joshua's home and school is 800 m. Joshua takes 5 min to walk
    8·1 answer
  • Really need help on this timed
    9·2 answers
  • Ayyyyyyyy help me even if u can only help with 1 answer it wud be appreciated
    13·1 answer
  • #5
    15·2 answers
  • A quadrilateral had two angles thst measure 260degrees amd 50 degrees. The other two angles are in a ratio of 2:3. What are the
    14·1 answer
  • How many cm of framing are needed to make a picture frame with outside measurements 40 cm and 25 cm​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!