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
kvasek [131]
3 years ago
6

Please Help!!!

Mathematics
2 answers:
myrzilka [38]3 years ago
7 0

Answer:

A. principal interviewed the 25 students who scored highest on a reading test.

D. For a report on the exercise habits of adults, Sergio talked to 30 adults at a local fitness center.

E. Josh asked the first 25 people he met at the dog park if they preferred dogs or cats.

Step-by-step explanation:

Biased means if the selection of every unit does not have an equal chance of being selected in a sample.

The sample is said to be good if choosing the unit is unbiased. The sample is said to be unbiased if the selection of each unit is independent.

Option A is an example of data selected in a biased way because principal chose only those student who scored the highest marks on reading test.

Options B and C are unbiased as here a selection of each number and name of the student has an equal chance of being selected.

Option D is biased because Sergio talked adults at a local fitness center where people go for maintaining their health. So, there is a chance of the selection of fitted adults more than unfitted adults.

Option E is biased because Josh met people at the dog park where dog lovers are more than a cat lover.

sukhopar [10]3 years ago
5 0

Answer:

Its A, D, and E.

Step-by-step explanation:

Got it right.

You might be interested in
What is the quadratics formula?
8_murik_8 [283]
This is the quadratic formula

8 0
3 years ago
Read 2 more answers
It took Jimena 89 minutes to run a 15-kilometer race last weekend. If you know that 1 kilometer equals 0.621 mile, how many minu
Novosadov [1.4K]
The answer is <span>9.55 minutes
</span>
1. Turn 15 km into miles:
    1 km = 0.621 mile
    15 km = 15 * 0.621 mile = 9.315 miles
So, she ran 9.315 miles for 89 minutes

2. Calculate <span>how many minutes it took Jimena to run 1 mile during the race:
    S</span>he ran 9.315 miles for 89 minutes.
    She ran 1 mile for x minutes.
    9.315 mi : 89 min = 1 mi : x
    x = 89 min * 1 mi / 9.315 mi
    x = 9.55 min
3 0
3 years ago
3[5x - 4] - [-30 - 45x]
Nimfa-mama [501]
3(5x - 4) - (-30-45x)
= 15x - 12 + 30 + 45x <- Distributive Property
=60x + 18 <- Combine Like Terms

If you're trying to solve for 0:

0 = 60 x + 18
-18 = 60x <- Subtracted 18 from both sides
x = \frac{-18}{60} = \frac{-9}{30} <- Divided both sides by 60 and then simplified.

x = \frac{-9}{30} <- Fraction Form
x = -0.3 <- Decimal Form

Give Brainliest for simple answer plz :P
3 0
3 years ago
Read 2 more answers
UREGENT !! Determine the slope of the given equation: (give the slope as a decimal.)
Aleks [24]

Answer:

0.25

Step-by-step explanation:

4 0
3 years ago
In a rectangle, the ratio of the width to the length is 4:5. If the rectangle is 40
Marina CMI [18]

Answer:

50 cm

Step-by-step explanation:

4/5 = 40/x

cross multiply

4x=200

x=50

4 0
2 years ago
Read 2 more answers
Other questions:
  • I am thinking of a number. It is increased by 7. The sun is 21. What is my number?
    11·2 answers
  • Allan keeps tropical fish his aquarium is 4 feet long ,1 foot wideand 2 feet tall each fish needs atleast 0.5ft 3 of water what
    6·1 answer
  • PLEASE HELP ME!!! TIMED TEST!!! WILL REPORT IF YOU GIVE A LINK!!!
    6·2 answers
  • Sally had 57 apples if she gave 48 to charity how many apples does she have left
    10·1 answer
  • Why isn’t it reading the problem right
    12·2 answers
  • Question 4<br> A<br> B<br> C<br> D<br> PLEASE HELP!!!
    9·1 answer
  • A company announces that it will be giving 15% of its profits to charity. If the company profits $32,000, how much money will it
    11·1 answer
  • Shonda has $125. She spends 35% of the money she has on a concert ticket. How much did Shonda pay for the concert ticket?
    14·1 answer
  • NO LINKS!!!!
    5·1 answer
  • Do the quantities combine?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!