Answer:
0.67038
Explanation:
One z-value is negative and the other is positive.
This means we are looking for area between the two given z-values on opposite sides of the mean.
From z-table attached, the area at z = -2.31 is 0.98956
Also, from the second z-table attached, the area at z = 0.47 is 0.68082
But since we are looking for the area between both z-scores, we will now have;
P(-2.31 < x < 0.47) = (0.98956 + 0.68082) - 1
P(-2.31 < x < 0.47) = 0.67038
Yes you can just add then subtract then get your decimal put it in the hole and you get your answer hope this helps!!
Answer:
2) Static friction is a force that keeps an object at rest .The term sliding friction refers to the resistance created by two objects sliding against each other . This can also be called kinetic friction . Sliding friction is intended to stop an object from moving
3) Friction is caused due to irregularities on the surfaces of objects in contact.If we carefully observe the surface of objects through magnifying lens we will see that there are tiny hills and grooves . When two surfaces come in contact with each other these hills and grooves interlock with one another and thus oppose motion .
<em>Hope</em><em> this</em><em> helps</em><em> </em><em>:</em><em>)</em>
