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
saw5 [17]
3 years ago
8

PLS HELP MY GRADE DEPENDS ON IT Image is attached below

Mathematics
1 answer:
Lyrx [107]3 years ago
8 0

Answer: the first one

Step-by-step explanation: head math

You might be interested in
A math teacher was frustrated at the number of students leaving their graphing calculator behind in her classroom at the end of
AleksAgata [21]

Answer:

The 99% confidence interval for the proportion of all students at this school who have their names written on their graphing calculators is (0.4652, 0.8148).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

A random sample of 50 students is selected, and of the students questioned, 32 had their names written on their graphing calculators.

This means that n = 50, \pi = \frac{32}{50} = 0.64

99% confidence level

So \alpha = 0.01, z is the value of Z that has a pvalue of 1 - \frac{0.01}{2} = 0.995, so Z = 2.575.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.64 - 2.575\sqrt{\frac{0.64*0.36}{50}} = 0.4652

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.64 + 2.575\sqrt{\frac{0.64*0.36}{50}} = 0.8148

The 99% confidence interval for the proportion of all students at this school who have their names written on their graphing calculators is (0.4652, 0.8148).

8 0
3 years ago
student were asked to choose their favorite food and 5/6 chose either pizza or tacos if 2/6 of the students chose pizza what fra
Julli [10]

Answer:

3/6 or 1/2

Step-by-step explanation:

the amount that chose pizza = 2/6

5/6 = the amount that chose pizza + the amount that chose tacos

5/6 = 2/6 + the amount that chose tacos

the amount that chose tacos = 5/6 - 2/6

the amount that chose tacos = (5-2)/6

the amount that chose tacos=3/6=1/2

7 0
2 years ago
Read 2 more answers
2 less than three times a number is the same as the number plus 10
GenaCL600 [577]
3x - 2 = x + 10
So, 2x = 12 and x = 6 
4 0
3 years ago
A contradiction has no solutions. True or False?
Eddi Din [679]

Answer:

false

Step-by-step explanation:

6 0
3 years ago
6th grade math help me plzzz
Brut [27]

Answer:

a summary is an average and an average is mean

Step-by-step explanation:

to get the mean add all the cakes sold together then divide by number of years

21+28+19+26+21=115

115/5=23

so....

first one: mean

second one: 23

7 0
3 years ago
Read 2 more answers
Other questions:
  • Which choice shows the best estimate of the product 0.52×695 ?
    15·1 answer
  • a number between 1 and 3 is chosen 30 times. result 1,2,3 frequency 8,12,10. what is the theoretical probability of choosing a 2
    11·1 answer
  • Which of these is an example of a non-random sample?
    6·1 answer
  • And distance of the last ramp is ______ feet (round to the nearest foot)
    5·1 answer
  • 2. Find the probability that an event E will not occur if
    14·1 answer
  • .Chris and Brian were selling T-shirts for their school's basketball team .for every seven t-shirts Chris Sold, Brian Sold 5 t-s
    11·1 answer
  • Phillip wants to estimate how many words are in a book he is reading for class. He counts the words on 21 pages, and he finds th
    11·2 answers
  • 2x+5y=-11. <br> -8x-5y=-11
    8·2 answers
  • What is 85.1 divided by 5.5
    10·2 answers
  • Can someone please help me with this
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!