What Was the Age Distribution of Nurses in Great Britain

question 3

Multiple Choice

What was the age distribution of nurses in Great Britain at the time of Florence Nightingale? Thanks to Florence Nightingale and the British census of 1851, we have the following information (based on data from classic text Notes on Nursing, by Florence Nightingale) . Note: In 1851 there were 25,466 nurses in Great Britain. Furthermore, Nightingale made a strict distinction between nurses and domestic servants. Find the probability that a British nurse selected at random in 1851 would be 30 years of age or older. Round your answer to nearest thousandth. $$\begin{array} { | l | c | c | c | c | c | c | c | } \hline \text { Age range (yr) } & \mathbf { 2 0 } - \mathbf { 2 9 } & \mathbf { 3 0 } - \mathbf { 3 9 } & \mathbf { 4 0 } - \mathbf { 4 9 } & \mathbf { 5 0 } - \mathbf { 5 9 } & \mathbf { 6 0 } - \mathbf { 6 9 } & \mathbf { 7 0 } - \mathbf { 7 9 } & \mathbf { 8 0 } + \\\hline \text { Midpoint } ( x ) & 24.5 & 34.5 & 44.5 & 54.5 & 64.5 & 75.5 & 84.5 \\\hline \text { Percent of nurses } & 5.7 \% & 9.7 \% & 19.5 \% & 29.2 \% & 25.0 \% & 9.1 \% & 1.8 \% \\\hline\end{array}$$

• A)0.097
• B)0.098
• C)0.943
• D)0.292
• E)0.942

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Definitions:

Conditioned Response

The learned response to a previously neutral stimulus that has become associated with an unconditioned stimulus in classical conditioning.

Food

Any nutritious substance that people or animals eat or drink to maintain life and growth.

Extended Exposure

A therapeutic technique involving repeated, prolonged contact with a feared stimulus, aiming to reduce anxiety or distress associated with it.

Spontaneous Recovery

A phenomenon of learning and memory that refers to the reemergence of a previously extinguished conditioned response after a period of rest and with no further conditioning.