Population mean = (7+8+6+6+6+4+4+1+2+7+6+1+1+1+3+3+5+4+5+7) / 20 = 87/20 = 4.35 <==
sample mean = (4+5+7) / 3 = 16/3 = 5.33 <==
Answer:
Difference = 2/4
Step-by-step explanation:
Line Plot is a graph that presents data through number line. Here, possible values of considered variable are on number line, & their frequency is denoted by number of dots or crosses above.
As per given line plot for tomato plants heights, 3 plants have height = 1/4, 5 plants have height = 1/2, 4 plants have height = 3/4.
1/4 < 1/2 < 3/4 , 1/4 is the shortest height & 3/4 the longest height of plants. So, difference between smallest & largest height value, ie range = Highest Value - Lowest Value = 3/4 - 1/4 = 2/4
Answer:
t=7
Step-by-step explanation:
Collect like terms
7t+7t=102-4
14t=98
t = 98/14
t=7