The dot plot shows the birth year of everyone who works at sam’s office. the youngest person who works there was born in 1987. sam described the data as having a spread from 1965 to 1987, four gaps, a peak at 1984, and a center of 1978. where did sam make an error?

birth year of employees

a dot plot going from 1965 to 1990. 1966 has 7 dots, 1969 has 2 dots, 1974 has 3 dots, 1975 has 1 dot, 1976 has 3 dots, 1977 has 2 dots, 1977 has 2 dots, 1978 has 5 dots, 1981 has 3 dots, 1983 has 1 dot, 1984 has 8 dots, 1985 has 3 dots, 1986 has 1 dot, 1987 has 1 dot. all other years have 0 dots.
the spread is from 1966 to 1987.
there are 5 gaps.
the peak is at 1985.
the center is at 1977.

The correct answer is The spread is from 1966 to 1987

Explanation:

is this supposed to be a question

uses : -

1.aneroid barometers primarily measure whether pressure is rising or falling.

2.aneroid barometers are often used for reading pressure in homes and recreational boats.  

3.other uses may include barographs in meteorology and altimeters in modern aircraft.  

4.this type of barometer can announce whether a high or low pressure system is coming or whether it is becoming more intense.  

5.there are different types of aneroid barometers, such as the altimeter, which measures altitude, or distance above sea level.  

6.another example is a barograph, which is a modified aneroid barometer that provides constant readings of atmospheric pressure on graph paper.  

7.when used in this capacity, the aneroid barometer can store a week's worth of data.

android diameter a device for measuring atmospheric pressure , often specially calibrated for use as an altimeter ,consisting of a box or chamber partially exhaused of air, having an elastic top and a pointer to indicate the degree of compression of the top caused by the external air

refer to the attachment for the characteristics : -