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
Marta_Voda [28]
4 years ago
15

Noah wants to predict who will be selected as the sixth-grade treasurer for student council. Which of the following groups shoul

d Noah survey to make his prediction?
The first 100 students from an alphabetical list of the entire school
The first 100 students from an alphabetical list of sixth graders
One hundred random students from the entire school
One hundred random students from the sixth grade
Mathematics
2 answers:
Ipatiy [6.2K]4 years ago
8 0

Answer:

d

Step-by-step explanation:

xenn [34]4 years ago
4 0
<span>D. One hundred random students from the sixth grade is the best choice given!
</span><span>
Reasons why the other answers and not good choices.
A. The first 100 students from an alphabetical list of the entire school, is incorrect because his only concern is the 6th graders, by including everyone he would negatively skew the data.
B. The first 100 students from an alphabetical list of sixth graders, is incorrect because its unfair to those with names starting later in the alphabet.
C. One hundred random students from the entire school </span>is is better but still incorrect because his only concern is the 6th graders, <span>by including everyone he would again negatively skew the data.</span>

You might be interested in
Given two trig ratios find the third!
brilliants [131]

Answer:

Step-by-step explanation:

tanA = sinA/cosA = (4/7)/(3/7) = 4/3

7 0
3 years ago
Read 2 more answers
A student repeatedly measures the mass of an object using a mechanical balance and gets the following values: 560 g, 562 g, 556
MrRissso [65]

Answer: 2.76 g

Step-by-step explanation:

The formula to find the standard deviation:-

\sigma=\sqrt{\dfrac{\sum(x_i-\overline{x})^2}{n}}

The given data values : 560 g, 562 g, 556 g, 558 g, 560 g, 556 g, 559 g, 561 g, 565 g, 563 g.

Then,  \overline{x}=\dfrac{\sum_{i=1}^{10} x_i}{n}\\\\\Rightarrow\ \overline{x}=\dfrac{560+562+556+558+560+556+559+561+565+563}{10}\\\\\Rightarrow\ \overline{x}=\dfrac{5600}{10}=560

Now, \sum_{i=1}^{10}(x_i-\overline{x})^2=0^2+2^2+(-4)^2+(-2)^2+0^2+(-4)^2+(-1)^2+1^2+5^2+3^2\\\\\Rightarrow\ \sum_{i=1}^{10}(x_i-\overline{x})^2=76

Then, \sigma=\sqrt{\dfrac{76}{10}}=\sqrt{7.6}=2.76

Hence, the  standard deviation of his measurements = 2.76 g

6 0
3 years ago
When a number is decreased by 4%, the result is 93. What is the original number
romanna [79]

Answer:

<u>The original number is 96.875</u>

Step-by-step explanation:

Let's find the original number using the Direct Rule of Three, this way:

       Percentage          Number

              100                       x

               96                       93

***********************************************

96x = 93 * 100

96x = 9,300

x = 9,300/96

x = 96.875

<u>The original number is 96.875</u>

7 0
3 years ago
HELP! SSUUUUUUUUPER EASY! REEEEEEEEEEEALLY QUICK! I'm just du. mb
pishuonlain [190]
the answer is 15m^6
7 0
2 years ago
Read 2 more answers
Wendy thinks the perfect chocolate chip cookie has 35 chocolate chips for every 5 ounces of dough. Cookie Club makes batches of
alisha [4.7K]

Answer: They are not chocolatey enough

Step-by-step explanation: They’re are 5 missing chocolate chips

6 0
3 years ago
Read 2 more answers
Other questions:
  • What is 2/3 divided by 1/6
    13·2 answers
  • What is the volume of a circular cylinder with a base diameter of 6 m and a height of 5 m?
    15·1 answer
  • What can be concluded about the distance from point B to CD?
    6·1 answer
  • Desiree drove north for 30 minutes at 50 miles per hour. Then, she drove south for 60 minutes at 20 miles per hours. How far and
    8·1 answer
  • How do i even start to solve this problem?
    10·2 answers
  • Determinant of a Triangular matrix In Exercises 39–42, find the determinant of the triangular matrix. 39. [−2 4 −3 0 6 7 0 0 2]
    6·1 answer
  • Help please , I need an answer quickly if possible
    11·2 answers
  • What is the initial value of the function represented by this graph
    8·1 answer
  • HELP ASAP
    13·1 answer
  • Find -3/7 divided by -15/1
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!