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
Elis [28]
2 years ago
11

A Statistics class has a test average of 87 with a standard deviation of 2.1. Find the z-score that corresponds to Kate's test s

core of 93. (Round to the nearest hundredths)
Mathematics
1 answer:
Leto [7]2 years ago
3 0

Answer:

2.86

Step-by-step explanation:

So I'm pretty sure we don't want the probability, just the zscore

to find the zsore subtract the mean and divide by the standard deviation

(93-87)/2.1= 2.86

You might be interested in
Braydon is at the 10-mile Marker at the park to run. He can run at a pace of 3 miles per hour. Lauren is at the 12-mile marker a
madreJ [45]

it will take 1.33 hours for Braydon and Lauren to  get to the same mile marker on the path in the  park .

<u>Step-by-step explanation:</u>

Here we have , Braydon can run at 3 miles per hour , he's initially at 10 mile marker . Lauren is at the 12-mile marker at the park, She is walking at a pace of 1.5 miles per hour. We need to find How long will it take for Braydon and Lauren to  get to the same mile marker on the path in the  park .Let's find out:

Let after time t they meet each other so ,  Braydon can run at 3 miles per hour , he's initially at 10 mile marker . Distance traveled is given by :

⇒ 3t+10

Now , Lauren is at the 12-mile marker at the park, She is walking at a pace of 1.5 miles per hour , Distance traveled is given by :

⇒ 1.5t + 12

Equating both we get :

⇒ 3t+10=1.5t+12

⇒ 1.5t=2

⇒ t=\frac{2}{1.5}

⇒ t=1.33

Therefore , it will take 1.33 hours for Braydon and Lauren to  get to the same mile marker on the path in the  park .

7 0
3 years ago
A runner completed a 26.2-mile marathon in 210 minutes. a. Estimate the unit rate, in miles per minute. Round your answer to the
ivanzaharov [21]

Answer:

Unit rate by which the runner completed the marathon is 0.13 miles per minute.

Step-by-step explanation:

A runner competed a marathon of 26.2 miles in 210 minutes.

we can get unit rate by unitary method.

∵ In 210 minutes a runner completes the distance = 26.2 miles

∴ In 1 minute runner will complete the distance = \frac{26.2}{210}

                                                                              = 0.125 miles per minute

                                                                              ≈ 0.13 miles per minute

Therefore, unit rate by which the runner completed the marathon is 0.13 miles per minute.

6 0
2 years ago
A sector of a circle has a central angle measuring 80 degrees. If the area
marysya [2.9K]

Answer:

675in

Step-by-step explanation:

not it

6 0
2 years ago
MARKING BRAINLIEST!!
Misha Larkins [42]

Answer: 6a 2(a+2a) and the last one

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
I am useless plz help
Alex777 [14]

Answer: your answer is 195

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • Find the slope of the line perpendicular to the line y=6x+11
    10·1 answer
  • Find the the perimeter of triangle JKL
    5·1 answer
  • Evaluate 8 - 4.7y - x <br> when y= -1 and x= 2.
    14·2 answers
  • You have a bag of 12 blue marbles and 12 red marbles. each are labeled 1-12. so you have 24 marbles in total (1-12 for each colo
    12·1 answer
  • The 4 TH grade is collecting bottled water for field day. They would like to collect 100 bottles. Ava brings 4 packs of 6 and Ma
    13·1 answer
  • Can I have some help please​
    8·1 answer
  • 48/42 = 16/14<br><br> a<br> proportional<br> b<br> non-proportional
    6·1 answer
  • Check image for the question. <br><br> Please do not put a random answer.
    14·2 answers
  • Please help me out with this, WILL GIVE BRAINLIEST ANSWER!!!
    9·2 answers
  • I need help with problems solving 2 and problem solving 3 please
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!