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
AVprozaik [17]
2 years ago
8

Researchers doing a study comparing time spent on social media and time spent on studying randomly sampled 200 students at a maj

or university. They found that students in the sample spent an average of 2.3 hours per day on social media and an average of 1.8 hours per day on studying. If all the students at the university in fact spent 2.2 hours per day on studying, with a standard deviation of 2 hours, and we find the probability of observing a sample mean of 1.8 hours studying has an extremely low probability, we say that observed time is: statistically wrong. statistically unlikely. statistically significant. statistically rare.
Mathematics
1 answer:
larisa [96]2 years ago
5 0
Dachshund know what is this man what do frog is making
You might be interested in
Help !!!!! It’s algebra :(
Naily [24]

Answer:

18 is the answer to your question.

8 0
3 years ago
Read 2 more answers
What is the equation of the line passing through (0,0) and (1,4)
posledela
\bf \begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
%   (a,b)
&({{ 0}}\quad ,&{{ 0}})\quad 
%   (c,d)
&({{ 1}}\quad ,&{{ 4}})
\end{array}
\\\\\\
% slope  = m
slope = {{ m}}= \cfrac{rise}{run} \implies 
\cfrac{{{ y_2}}-{{ y_1}}}{{{ x_2}}-{{ x_1}}}\implies \cfrac{4-0}{1-0}\implies 4

\bf y-{{ y_1}}={{ m}}(x-{{ x_1}})\implies y-0=4(x-0)\implies \boxed{y=4x} 
\\
\left. \qquad   \right. \uparrow\\
\textit{point-slope form}
6 0
3 years ago
Drag and drop the statement into the correct box.
a_sh-v [17]

Answer:

true on all but the last one

Step-by-step explanation:

the last one is false because a trapezoid is considered a quadrilateral that has exactly one pair of parallel sides.

8 0
2 years ago
Please i really need help with this
iris [78.8K]

Answer:

y = 2x + 4

Step-by-step explanation:

First, we need to find out the original equation. On this graph, we can see that the original y-intercept is -1. We can also figure out the slope by counting how many units up on the graph the higher point is from the lower point, in this case, 4, and how many units right it is, in this case, 2, so our slope is 4/2, which can be simplified to 2/1, or a slope of 2. Using the slope and y-intercept, we can create the equation for the original line. The equation will be y = 2x - 1. To get our final answer, we simply need to substitute 4 in the place of -1, and we get our final equation, y = 2x + 4.

4 0
2 years ago
Read 2 more answers
ASAP I NEED HELP <br> four 28s in lowest terms​
Margaret [11]

1/7 is the answer. 4/28 = 1/7 but in the lowest term

5 0
3 years ago
Other questions:
  • if a man walks his dog for 4 hours total a week, then how many weeks total does it take for him to walk his dog for a total of 4
    11·1 answer
  • 30 POINTS !!!!!!!!!!! When dealing with an equation containing two variables, we can put the graph of the equation on the coordi
    14·1 answer
  • An apple orchard sells apples in bags of 10. The orchard sold a total of 2430 apples one day. How many bags of apples was this?
    7·1 answer
  • Interpreting a Function
    13·1 answer
  • Two trucks started toward each other at the same time from towns 500 km apart. One truck traveled at a rate of 65 km per hour wh
    11·1 answer
  • Julio walks 3 ½ miles in 1 ¼ hours.
    14·1 answer
  • I will give the best answer brainliest!!
    15·2 answers
  • How do solve this?<br><br> 9g &lt; -1/2
    10·2 answers
  • Solve.<br> |7x -5| = |8x -4
    9·1 answer
  • 4. 6x³ - 4x² +7 or 7x³ - 6x² + 4 for x = 3
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!